He was born in Dublin, Ireland (4). He was 33 years old when he was enlisted (4).
He was 5 feet 7 inches tall, and had a light complexion, blue eyes, and sandy hair (4).
He was enlisted and mustered into service on 20 January 1862 (1, 4, 8). He was enlisted for three years, at Philadelphia, Pennsylvania, by Lieutenant Black (4). He was mustered in as a private in company H (1).
He was captured on 1 June 1863 (1). On 28 July 1863, he was reported as having been dropped because he was missing in the campaign (probably after 11 June 1863) (2).
He was released on 1 August 1864 (1).
In October 1863, he was admitted to the Naval Academy Hospital as a patient (7).
He was wounded on 28 October 1864 at Hatcher's Run, Virginia (1).
He was discharged at Philadelphia, Pennsylvania, on 13 March 1865 by general order, War Department (1, 3, 8).
On 3 April 1865, he applied successfully for a pension (5, 8).
1 Bates, Samuel Penniman. History of Pennsylvania volunteers, 1861-5. Harrisburg: B. Singerly, state printer, 1869-71. 5 volumes. 'Ninety-first regiment', volume 3, pages 186-233. (In the roster)
2 consolidated morning report, 91st PA, 28 July 1863 (Pri Eagan)
3 company H, register of men discharged, #49 (Wm Egan)
4 company H, descriptive roll, #97 (William Egan)
5 pension index, by name (William Egan)
6 [deleted]
7 'Our Annapolis letter', Philadelphia Inquirer 12 October 1863, page 2] (Wm Egan)
8 pension index, by regiment, 91st PA Infantry, company H (William Egan)
[I did not find an entry for him in the index on <www.ancestry.com> to the 1890 veterans' census (searched May 2006) (but one William Egan in New York had no other identifying information)]
The subjoined named were admitted into the above hospital [sc. the Naval Academy Hospital] on Monday, from St. John's College Barracks, as patients: [...] Wm. Egan, 91st Pa.; [...]