The following list shows the names of substantive, full grade general officers (Regular U.S. Army or U.S. Volunteers) effectively appointed, nominated, confirmed and commissioned (by signed and sealed document) who served in the Union Army during the American Civil War.Eicher, John H., and David J. Eicher, Civil War High Commands. Stanford: Stanford University Press, 2001. p. 31. Many commissions were antedated. Dates of rank were assigned for seniority purposes. Because of this, such "ranks" could be dated before the actual appointment, leading to confusion in some sources as to the actual effective date of the commission. 2001, p. xix. This list currently shows the date of rank as the date of the promotion rather than the date of commission.

Officers receiving only brevet general appointments should be on the List of American Civil War brevet generals (Union) and not on this list. Brevet appointments went through the same process of appointment, nomination, confirmation and commission as the substantive grade officers.Eicher, 2001, p. 34. If a full grade brigadier general received a later brevet major general appointment, that appointment also may be placed in the notes on this list.

All but 58 brevet general appointments were made postwar but, just as many regular substantive grade appointments were backdated, many of the brevet grade appointments were backdated, mostly "to rank from" March 13, 1865.Hunt, Roger D. and Jack R. Brown, Brevet Brigadier Generals in Blue. Gaithersburg, MD: Olde Soldier Books, Inc., 1990. . p. xiii. President Abraham Lincoln signed only 58 brevet general commissions before his death on April 15, 1865. Eicher notes that the odd order of grade (commission) date and rank date is especially present for brevet appointments which were actually issued mostly in 1866 to as late as 1869. Eicher also notes that most brevet appointments were backdated to March 13, 1865.

In addition to their names and grades, there is a small set of notes after every entry which may list 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) and other unique facts pertaining to this article (i.e. youngest general, last surviving general, etc.). For all other information on their lives and accomplishments of these generals, please refer to their individual articles which have links from the list.

Note on abbreviations: MOH: Medal of Honor CSA: Confederate States Army DOW: Died of wounds GAR: Grand Army of the Republic KIA: Killed in action MOLLUS: Military Order of the Loyal Legion of the United States USA: United States Army (Regular Army) (appointment or brevet) USMA: United States Military Academy USN: United States Navy USV: United States Volunteers (appointment or brevet) VRC: Veteran Reserve Corps officer

Union generals Union Generals:ABCDEFGHIJKLMNOPQRSTUVWXYZ

A

Image Name Substantiverank Brevetrank Notes Abercrombie, John Joseph Colonel, USA(February 25, 1861)Brigadier general, USV(August 31, 1861) Brigadier general, USA(March 13, 1865) USMA, 1822Resigned June 24, 1865 Allen, Robert Colonel, USA(February 19, 1862)Brigadier general, USV(May 23, 1863) Major general, USA(March 13, 1865)Major general, USV(March 13, 1865) USMA, 1836 Alvord, Benjamin Major, USA(June 22, 1854)Brigadier general, USV(April 15, 1862) Brigadier general, USA(April 9, 1865) USMA, 1833 Ames, Adelbert Captain, USA(June 11, 1864)Brigadier general, USV(May 20, 1863) Major general, USA(March 13, 1865)Major general, USV(January 15, 1865) USMA, 1861MOH, First Battle of Bull Run (July 21, 1861)Provisional Governor Mississippi (1868–1869)U.S. Senator from Mississippi (1870–1874) Governor of Mississippi (1875)Last surviving Union General of U.S. Regular Army, d. April 13, 1933Son-in-law of Benjamin Franklin Butler Ammen, Jacob Brigadier general, USV(July 16, 1862) USMA, 1831Resigned January 14, 1865 Anderson, Robert Brigadier general, USA(May 15, 1861) Major general, USA(February 3, 1865) USMA, 1825Retired October 27, 1863 Andrews, Christopher Columbus Brigadier general, USV(January 5, 1864) Major general, USV(March 9, 1865) Andrews, George Leonard Brigadier general, USV(November 10, 1862) Major general, USV(March 26, 1865) USMA, 1851Resigned, 1855 Arnold, Lewis Golding Lieutenant colonel, USA(August 1, 1863)Brigadier general, USV(January 24, 1862) USMA, 1837Retired February 8, 1864 Arnold, Richard Captain, USA(May 14, 1861)Brigadier general, USV(November 29, 1862) Major general, USA(March 13, 1865)Major general, USV(August 22, 1865) USMA, 1850 Asboth, Alexander Sandor Brigadier general, USV(March 21, 1862) Major general, USV(March 13, 1865) Appointed brigadier general, USV (September 3, 1861) by John Charles Frémont who lacked the authority to make such an appointmentUnited States Minister to Argentina and Uruguay (1866–1868) Augur, Christopher Columbus Lieutenant colonel, USA(July 1, 1863)Major general, USV(August 9, 1862) Major general, USA(March 13, 1865) USMA, 1843 Averell, William Woods Captain, USA(July 17, 1862)Brigadier general, USV(September 26, 1862) Major general, USA(March 13, 1865)Major general, USV(August 7, 1864) USMA, 1855 Ayres, Romeyn Beck Captain, USA(May 14, 1861)Brigadier general, USV(November 29, 1862) Major general, USA(March 13, 1865)Major general, USV(August 1, 1864) USMA, 1847

B

Image Name SubstantiveRank BrevetRank Notes Bailey, Joseph Brigadier general, USV(November 10, 1864) Major general, USV(March 13, 1865) Received the Thanks of Congress (June 4, 1864) Baird, Absalom Major, USA(November 12, 1861)Brigadier general, USV(April 28, 1862) Major general, USA(March 13, 1865)Major general, USV(September 1, 1864) USMA, 1849MOH, Battle of Jonesborough (September 1, 1864) Baker, Edward Dickinson Brig. Gen., USV(May 17, 1861) KIA, Battle of Ball's Bluff (October 21, 1861)Declined appointment as brigadier general, USV, nevertheless confirmedNominated to major general, USV posthumously but not confirmed.Eicher, 2001, p. 113U.S. Congressman from Illinois (1845–1846, 1849–1851)U.S. Senator from Oregon (1860–1861) Banks, Nathaniel Prentiss Major general, USV(May 16, 1861) Received the Thanks of Congress (January 28, 1864)U.S. Congressman from Massachusetts (1853–1857, 1865–1873, 1875–1879, 1889–1891)Speaker of the House (1856–1857)Governor of Massachusetts (1858–1861) Barlow, Francis Channing Major general, USV(May 25, 1865) Barnard, John Gross Colonel, USA(December 28, 1865)Brigadier general, USV(September 23, 1861) Major general, USA(March 13, 1865)Major general, USV(July 4, 1864) USMA, 1833Superintendent, USMA (1855–1856) Barnes, James Brigadier general, USV(November 29, 1862) Major general, USV(March 13, 1865) Barnes, Joseph K., M.D. Brigadier general, USA(August 22, 1864) Major general, USA(March 13, 1865) Surgeon General (1864–1882)Surgeon at the deathbeds of Presidents Abraham Lincoln and James Abram Garfield Barnum, Henry Alanson Brigadier general, USV(May 31, 1865) Major general, USV(March 13, 1865) MOH, Battle of Lookout Mountain (November 24, 1863) Barry, William Farquhar Colonel, USA(December 11, 1865)Brigadier general, USV(August 20, 1861) Major general, USA(March 13, 1865)Major general, USV(September 1, 1864) USMA, 1838 Bartlett, Joseph Jackson Brigadier general, USV(March 30, 1863) Major general, USV(August 1, 1864) Original appointment as brigadier general, USV (October 4, 1862) expired March 4, 1863