Full muster record: age 40; height 5' 9"; dark hair; grey eyes; light complexion; single; stone cutter; born in Ireland; residing in St. Louis, Missouri, at time of enlistment on Oct. 9, 1861; mustered into service on Oct. 9, 1861 at St. Louis by Captain Tracy; Discharged for disability Sep. 8, 1862 at Jacinto, Miss. By order of Gen. Rosecrans.
http://freepages.military.rootsweb.ancestry.com/~the26thmo/bios/biogolden_patrick.htm
http://freepages.military.rootsweb.ancestry.com/~the26thmo/rosters/rostera.html
http://freepages.military.rootsweb.ancestry.com/~the26thmo/
You may procure his service records files at: http://history-sites.com/research/index.html
The ancestry.com site lists his 1870 census data