(c. 1820 - ?)
Home State: New York
Branch of Service: Infantry
Unit: 69th New York Infantry
He had as many as 23 years service in the US Army. Early in the War, then age 41, he enlisted at New York City to serve three years, and mustered in as First Sergeant, Company G, 69th New York Infantry on 7 September 1861. He was reduced to Private 22 December 1861, then promoted to First Sergeant, Company E on 1 January 1862. He was appointed Sergeant Major of the Regiment on 25 June 1862.
On the Campaign
He was in action at Antietam on 17 September with his Company and Major Cavanaugh later wrote ...
Among the privates who also distinguished themselves during the action, I also recommend Patrick O'Neil, of Company C, and John Kelly, of Company --; and of the non-commissioned staff, Sergt. Major Patrick Callahan, who on the field behaved with great gallantry.
The rest of the War
He mustered as First Lieutenant, Company G on 17 September 1862. He was wounded in the back and leg in action at Fredericksburg, VA on 13 December 1862. He mustered out at the consolidation of the regiment on 12 June 1863, and had later service in the Veteran Reserve Corps.
References & notes
Service from the New York Adjutant General1 and Conyngham.2 His performance at Antietam from Major James Cavanagh's Official Report. Fredericksburg wound details from Robert McClernon's casualty list, which has him also as John Callahan, mortally wounded and dying at Fredericksburg. One US Army enlistment record in the Registers3 for a hitch from 1849-1854 shows him in Co. B, 3rd US Infantry and Battery M, 3rd US Artillery.
c. 1820; County Galway, IRELAND
1 State of New York, Adjutant-General, Annual Report of the Adjutant General of the State of New York [year]: Registers of the [units], 43 Volumes, Albany: James B. Lyon, State Printer, 1893-1905, For the Year 1901, Ser. No. 28, pg. 42 [AotW citation 18245]
2 Conyngham, David Power, The Irish Brigade and Its Campaigns, New York: William McSorley & Co., 1867, pg. 552 [AotW citation 18246]
3 US Army, Registers of Enlistments in the United States Army, 1798-1914, Washington, DC: National Archives, 1956, Vol. 48, pg. 41 [AotW citation 18247]