<PAGE>


                                   EXHIBIT 24

                               POWERS OF ATTORNEY

                                POWER OF ATTORNEY
                                -----------------


     KNOW ALL MEN BY THESE PRESENTS, that the undersigned Chairman of the Board
of Directors of Hibernia Corporation, a Louisiana corporation (the
"Corporation"), does hereby name, constitute and appoint J. Herbert Boydstun,
Marsha M. Gassan, Ron E. Samford, Jr. and Cathy E. Chessin, and each of them
(with full power to each of them to act alone), his true and lawful agents and
attorneys-in-fact, for him and on his behalf and in his name, place and stead,
in any and all capacities, to sign, execute, acknowledge, deliver, and file (a)
with the Securities and Exchange Commission (or any other governmental or
regulatory authority), a Registration Statement on Form S-3 (or other
appropriate form) and any and all amendments (including post-effective
amendments) thereto, with any and all exhibits and any and all other documents
required to be filed with respect thereto or in connection therewith, relating
to the registration under the Securities Act of 1933 of Common Stock of the
Corporation to be issued in connection the Corporation's Dividend Reinvestment
and Stock Purchase Plan authorized by resolutions adopted by the Executive
Committee of the Board of Directors on May 14, 2002 and (b) with the securities
agencies or officials of various jurisdictions, all applications,
qualifications, registrations or exemptions relating to such offering under the
laws of any such jurisdiction, including any amendments thereto or other
documents required to be filed with respect thereto or in connection therewith,
granting unto said agents and attorneys, and each of them, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises in order to effectuate the same as fully to
all intents and purposes as the undersigned might or could do if personally
present, and the undersigned hereby ratifies and confirms all that said agents
and attorneys-in-fact, or any of them may lawfully do or cause to be done by
virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Robert H. Boh
                                        ----------------------------------------
                                        Robert H. Boh
                                        Chairman of the Board of Directors
                                        HIBERNIA CORPORATION

<PAGE>

                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ E. R. "Bo" Campbell
                                        ----------------------------------------
                                        E. R. "Bo" Campbell
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>

                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Paul Candies
                                        ----------------------------------------
                                        Paul Candies
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>
                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Richard W. Freeman, Jr.
                                        ---------------------------
                                        Richard W. Freeman, Jr.
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>


                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Dick H. Hearin
                                        ----------------------------------------
                                        Dick H. Hearin
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>
                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Robert T. Holleman
                                        ----------------------------------------
                                        Robert T. Holleman
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>

                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Randall E. Howard
                                        ----------------------------------------
                                        Randall E. Howard
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>

                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Elton R. King
                                        ----------------------------------------
                                        Elton R. King
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>

                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Sidney W. Lassen
                                        ----------------------------------------
                                        Sidney W. Lassen
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>

                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), her true and lawful agents and attorneys-in-fact, for her and on her
behalf and in her name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set her hand on this 11th
day of December 2002.

                                        /s/ Janee "Gee" Mercadel-Tucker
                                        ----------------------------------------
                                        Janee "Gee" Mercadel-Tucker
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>

                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Donald J. Nalty
                                        ----------------------------------------
                                        Donald J. Nalty
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>

                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Ray B. Nesbitt
                                        ----------------------------------------
                                        Ray B. Nesbitt
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>

                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ William C. O'Malley
                                        ----------------------------------------
                                        William C. O'Malley
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>


                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Dr. James R. Peltier
                                        ----------------------------------------
                                        Dr. James R. Peltier
                                        Director
                                        HIBERNIA CORPORATION

<PAGE>


                                POWER OF ATTORNEY
                                -----------------

     KNOW ALL MEN BY THESE PRESENTS, that the undersigned director of Hibernia
Corporation, a Louisiana corporation (the "Corporation"), does hereby name,
constitute and appoint J. Herbert Boydstun, Marsha M. Gassan, Ron E. Samford,
Jr. and Cathy E. Chessin, and each of them (with full power to each of them to
act alone), his true and lawful agents and attorneys-in-fact, for him and on his
behalf and in his name, place and stead, in any and all capacities, to sign,
execute, acknowledge, deliver, and file (a) with the Securities and Exchange
Commission (or any other governmental or regulatory authority), a Registration
Statement on Form S-3 (or other appropriate form) and any and all amendments
(including post-effective amendments) thereto, with any and all exhibits and any
and all other documents required to be filed with respect thereto or in
connection therewith, relating to the registration under the Securities Act of
1933 of Common Stock of the Corporation to be issued in connection the
Corporation's Dividend Reinvestment and Stock Purchase Plan authorized by
resolutions adopted by the Executive Committee of the Board of Directors on May
14, 2002 and (b) with the securities agencies or officials of various
jurisdictions, all applications, qualifications, registrations or exemptions
relating to such offering under the laws of any such jurisdiction, including any
amendments thereto or other documents required to be filed with respect thereto
or in connection therewith, granting unto said agents and attorneys, and each of
them, full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises in order to
effectuate the same as fully to all intents and purposes as the undersigned
might or could do if personally present, and the undersigned hereby ratifies and
confirms all that said agents and attorneys-in-fact, or any of them may lawfully
do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand on this 11th
day of December 2002.

                                        /s/ Robert T. Ratcliff
                                        ----------------------------------------
                                        Robert T. Ratcliff
                                        Director
                                        HIBERNIA CORPORATION