site logo
M. O'Sullivan

M. O'Sullivan

Federal (USV)


Michael O'Sullivan

(1808 - 1873)

Home State: New York

Branch of Service: Infantry

Unit: 63rd New York Infantry

Before Antietam

He was a parochial school teacher in Albany, NY. He had been a member of a local militia unit, the Emmett Guard, and served with them in the 25th New York Infantry from April 1861. He gave his age as 45 years (he was about 53) when he enrolled at Camp California, VA to serve three years, and mustered in as Captain, Company F, 63rd New York Infantry on 6 December 1861. Discharged on 10 March 1862, but again mustered in as Captain, same Company, on March 25.

On the Campaign

He was wounded in action in the knee on 17 September 1862.

The rest of the War

He was discharged for wounds on 16 March 1863.

After the War

He returned to Albany and was clerk of Criminal Statistics until his death in 1873.

References & notes

Basic information from McLernon1. Conyngham2 says:

Captain Michael O'Sullivan, a native of Dublin [sic], organized and commissioned Captain of Company E [sic]; served with distinction through the different battles until that of Antietam, when he was wounded in the knee by a rifle-ball. Resigned and mustered out afterwards in consequence of his wounds.
His photograph from one in the New York State Military Museum3. Biographical details from a memorial to him in St. Agnes' Cemetery; its Past and Present Associations, Albany: F.S. Hills (1899), pg. 186.


1808; Limerick, IRELAND


2/21/1873 Albany, NY; burial in St. Agnes Cemetery, Albany, NY


1   McLernon, Robert, Casualty List, 63rd New York Volunteer Infantry, Meagher's Irish Brigade, Antietam, Maryland; September 17, 1862, Springfield (Va): R. McLernon, 2001  [AotW citation 2362]

2   Conyngham, David Power, The Irish Brigade and Its Campaigns, New York: William McSorley & Co., 1867, pg. 569  [AotW citation 12152]

3   State of New York, and Division of Military & Naval Affairs, New York State Military Museum, Published c. 2000, first accessed 01 January 2002, <>, Source page:  [AotW citation 12153]