Question: Which film has the director who is older than the other, The Secret Witness or Mentioned In Confidence? 

Knowledge 1: Mentioned in Confidence
Mentioned in Confidence is a 1917 silent film drama directed by Edgar Jones and produced by the Balboa Film Producing Company.The film survives in the Library of Congress collection. [SEP] Knowledge 2: The Secret Witness
The Secret Witness is a 1931 American pre-Code drama film, directed by Thornton Freeland and starring Una Merkel, William Collier Jr. and Zasu Pitts.It is an adaptation of the novel" Murder in the Gilded Cage" by Sam Spewack.The screenplay concerns a man who is found murdered in his luxury apartment.His neighbors believe that the wrong man has been arrested and set out to solve the crime. [SEP] Knowledge 3: Thornton Freeland
Thornton Freeland( February 10, 1898 – May 22, 1987) was an American film director who directed 26 British and American films in a career that lasted from 1924 to 1949. [SEP] Knowledge 4: Edgar Jones (actor)
Edgar Jones( June 17, 1874 – February 7, 1958) also known as Ed Jones and as" Pardner" Jones, was an American actor, producer, and director of films.He starred in and directed the adaptation of Mildred Mason's" The Gold in the Crock".He also starred in and directed Siegmund Lubin films including" Fitzhugh's Ride".He established a film production business in Augusta, Maine that produced adaptations of Holman Day novels.
Knowledge 1: Thornton Freeland
Thornton Freeland( February 10, 1898 – May 22, 1987) was an American film director who directed 26 British and American films in a career that lasted from 1924 to 1949. [SEP] Knowledge 2: Mentioned in Confidence
Mentioned in Confidence is a 1917 silent film drama directed by Edgar Jones and produced by the Balboa Film Producing Company.The film survives in the Library of Congress collection. [SEP] Knowledge 3: Edgar Jones (actor)
Edgar Jones( June 17, 1874 – February 7, 1958) also known as Ed Jones and as" Pardner" Jones, was an American actor, producer, and director of films.He starred in and directed the adaptation of Mildred Mason's" The Gold in the Crock".He also starred in and directed Siegmund Lubin films including" Fitzhugh's Ride".He established a film production business in Augusta, Maine that produced adaptations of Holman Day novels. [SEP] Knowledge 4: The Secret Witness
The Secret Witness is a 1931 American pre-Code drama film, directed by Thornton Freeland and starring Una Merkel, William Collier Jr. and Zasu Pitts.It is an adaptation of the novel" Murder in the Gilded Cage" by Sam Spewack.The screenplay concerns a man who is found murdered in his luxury apartment.His neighbors believe that the wrong man has been arrested and set out to solve the crime.
Knowledge 1: Thornton Freeland
Thornton Freeland( February 10, 1898 – May 22, 1987) was an American film director who directed 26 British and American films in a career that lasted from 1924 to 1949. [SEP] Knowledge 2: Mentioned in Confidence
Mentioned in Confidence is a 1917 silent film drama directed by Edgar Jones and produced by the Balboa Film Producing Company.The film survives in the Library of Congress collection. [SEP] Knowledge 3: Edgar Jones (actor)
Edgar Jones( June 17, 1874 – February 7, 1958) also known as Ed Jones and as" Pardner" Jones, was an American actor, producer, and director of films.He starred in and directed the adaptation of Mildred Mason's" The Gold in the Crock".He also starred in and directed Siegmund Lubin films including" Fitzhugh's Ride".He established a film production business in Augusta, Maine that produced adaptations of Holman Day novels. [SEP] Knowledge 4: Frank J. Marshall (engineer)
Frank J. Marshall is a private investor and a member of the Silicon Valley Advisory Council.He holds a B.S. in electrical engineering from Carnegie Mellon.Marshall has been written about or mentioned in various executive profiles, news stories, and IEEE papers.

Answer: Mentioned In Confidence