Question: What is the Substantive Rank of the Union Civil War general who was nicknamed Old Bullion ?

text: List of American Civil War generals (Union)
Union generals -- F

The following lists show the names, substantive ranks, and brevet ranks (if applicable) of all general officers who served in the United States Army during the Civil War, in addition to a small selection of lower-ranked officers who received brevets as general officers; while some 1,600 officers received or were nominated for brevets as general officers in the course of the war (or immediately following it for service during the war), only a small selection is listed here; only those who were killed in action, served as department heads within the army, had revoked or incomplete appointments or became U.S. President are listed here. In addition to their names and ranks, there is a small set of notes after every entry listing Medal of Honor or Thanks of Congress citations, West Point graduation dates, important political or Army offices held, retirements or deaths during the war (whether in action or other means), notable relations, rejections or expiration of appointments, or unique facts pertaining to this article (i.e. youngest general, last surviving general, etc. ); for all other information on their lives and accomplishments, please refer to their individual entries. If available, ranks are followed by the to rank from dates (i.e. the date on which the commission is effective) rather than the date of appointment or confirmation, which were generally months if not years later; this is particularly true in the case of brevets, most of which were granted after the war between 1866 and 1869. Note on abbreviations:
Name Substantive Rank Brevet Rank Notes
Fairchild , Lucius Captain , USA ( August , 1861 ) Brigadier general , USV ( October 13 , 1863 )  Resigned November , 1863 Governor of Wisconsin ( 1866-1872 ) U.S. minister to Spain ( 1880-1881 ) Commander-in-chief , GAR ( 1886-1887 ) Commander-in-chief , MOLLUS ( 1893-1895 )
Farnsworth , Elon John Captain , USV ( December 25 , 1861 )  Nominated brigadier general , USV , June 29 , 1863 , but not confirmed by U.S. Senate ; Assigned to command Brigade 1 , Division 3 , Cavalry Corps , Army of the Potomac , June 28 , 1863 , KIA , Battle of Gettysburg ( July 3 , 1863 ) Nephew of John Franklin Farnsworth
Farnsworth , John Franklin Colonel , USV ( September 18 , 1861 )  Nominated brigadier general , USV , November 29 , 1862 but not confirmed by U.S. Senate . Nomination ordered returned to President Lincoln , February 12 , 1863 . Resigned March 4 , 1863 . U.S . Congressman from Illinois ( 1857-1861 , 1863-1873 ) Uncle of Elon John Farnsworth
Ferrero , Edward Brigadier general , USV ( May 6 , 1863 ) Major general , USV ( December , 1864 ) Original appointment as brigadier general , USV ( September 10 , 1862 ) expired March 4 , 1863
Ferry , Orris S Brigadier general , USV ( March 17 , 1862 ) Major general , USV ( May 23 , 1865 ) U.S . Congressman from Connecticut ( 1859-1861 ) U.S . Senator from Connecticut ( 1867-1875 )
Fessenden , Francis Captain , USA Major general , USV ( November 9 , 1865 )  Son of Secretary of the Treasury William Pitt Fessenden Brother of James Deering Fessenden
Fessenden , James Deering Brigadier general , USV ( August 8 , 1864 ) Major general , USV ( March 13 , 1865 ) Son of Secretary of the Treasury William Pitt Fessenden Brother of Francis Fessenden
Finley , Clement Alexander Colonel , USA ( May 15 , 1861 ) Brigadier general , USA ( March 13 , 1865 ) Surgeon General ( 1861-1862 ) Retired April 14 , 1862
Fisher , Benjamin Franklin Colonel , USA Brigadier general , USV ( March 13 , 1865 ) Chief Signal Officer ( 1864-1865 )
Fisk , Clinton Bowen Brigadier general , USV ( November 24 , 1862 ) Major general , USV ( March 13 , 1865 )
Force , Manning Ferguson Brigadier general , USV ( August 11 , 1863 ) Major general , USV MOH , Battle of Atlanta ( July 22 , 1864 ) Brother-in-law of John Pope
Forsyth , James W Captain , USA ( October 24 , 1861 ) Brigadier general , USV ( March 19 , 1865 ) Brigadier general , USA ( March 13 , 1865 ) USMA , 1856
Foster , John Gray Captain , USA Major general , USV ( July 18 , 1862 ) Major general , USA ( March 13 , 1865 ) USMA , 1846
Foster , Robert Sanford Brigadier general , USV ( June 12 , 1863 ) Major general , USV Commissioner on Lincoln assassination trial
Francine , Louis Raymond Colonel , USV Brigadier general , USV ( July 2 , 1863 ) DOW , Battle of Gettysburg ( w. July 2 , 1863 , d. July 18 , 1863 )
Franklin , William Buel Colonel , USA ( May 14 , 1861 ) Major general , USV ( July 4 , 1862 )  USMA , 1843
Frémont , John Charles Major general , USA ( May 14 , 1861 )  Resigned June 4 , 1864 U.S . Senator from California ( 1850-1851 ) Territorial Governor of Arizona ( 1878-1887 ) Son-in-law of Senator Thomas Hart Benton
French , William H Colonel , USA Major general , USV ( November 29 , 1862 )  USMA , 1837 Mustered out of volunteer service May 6 , 1864
Fry , James Barnet Brigadier general , USA ( April 21 , 1864 ) Major general , USA USMA , 1847 Provost Marshal General ( 1863-1866 )
Fry , Speed Smith Brigadier general , USV ( March 21 , 1862 )