Photo of Henry Loomis from: Library of Congress, Prints & Photographs Division, [reproduction] http://lcweb2.loc.gov/ammem/cwphtml/cwphome.html

Henry C. Loomis: Company C, 64^th Regiment, NY State Volunteers. Age 27 years. Enrolled, September 16, 1861, to serve three years; mustered in as 1^st Lieutenant, Co. C, December 10, 1861; mustered out, September 23, 1862, at Washington, DC; subsequent service in One Hundred and Fifty-Fourth Infantry. Commissioned 1^st Lieutenant, November 25, 1861, with rank from November 13, 1861; original.

Reference: Adjutant General's Report, 1901