20th Corps (McCook's)
The Civil War Archive, Union Corps Histories, "20th Corps (McCook's)."
[citing "Regimental Losses in the American Civil War (1861-1865)" - William Fox] [The Civil War Archive 1998-2000; page updated 04 Aug. 2001]
Link to source: Alex M. McCook, XX Corp (Twentieth Corps), Union Army
Summary, Biography, History, Fact Check, Army Organization