Patrick E. Callahan enlisted as a landsman in New York on 25 January 1864 and was sent to the U.S.S. North Carolina. On 10 March 1864, he was ordered to the U.S.S. Kensington and then back to the North Carolina on 25 March. On 29 April, he was attached to the Tecumseh, .
Callahan's age is unknown, however he was in the Navy for nearly six months.
Awards & Memorials
Alternate Spellings of Name
References and Sources"List of men transfered to the U.S.S. Tecumseh from the receiving ship North Carolina, April, 1864" Official Records of the Union and Confederate Navies in the War of the Rebellion: Series I, Volume 21 West Gulf Blockading Squadron from January 1 to December 31, 1864 (1906)
 Officers and Enlisted Men who Died in the Active Service of the U.S. Navy 1776-1885
 "Navy Gazette: List of Deaths in the Navy of the United States, reported to the Bureau of Medicine and Surgery, Navy Department, during the week ending December 3d, 1864." Army and Navy Journal, 10 Dec. 1864, p. 253.
NARA M1274, "Case Files of Disapproved Pension Applications of Widows and Other Dependents of Civil War and Later Navy Veterans ("Navy Widows' Originals"), 1861-1910"