(? - 1863)
Home State: New York
Branch of Service: Infantry
Unit: 63rd New York Infantry
Mustered in as private, Company I, on January 16, 1862.
On the Campaign
He was wounded in action, slightly, hand, on 17 September 1862.
The rest of the War
Transferred to Company A on June 12, 1863. Wounded in action on July 2, 1863, at Gettysburg, Pa. He died of his wounds on July 3, 1863.
References & notes
Basic information from McLernon1. His name is also borne as O'Brian. John O'Brien is buried in Gettysburg National Cemetery John O'Brian Pvt Company A July 4, 1863 S:A GN 59.
Date not known
07/03/1863 Gettysburg, PA; burial in Gettysburg National Cemetery, Gettysburg, PA