U.S. Civil War Soldier Records and Profiles. Name: William H. H. Barnum; Age at Enlistment: 18; Enlistment Date: 26 Mar 1864; Rank at enlistment: Private; Enlistment Place: Sunfield, MI; State Served: Michigan; Survived the War?: No; Service Record: Enlisted in Company E, Michigan 2nd Infantry Regiment on 14 Apr 1864. Mustered out on 09 Aug 1864 at Petersburg, VA. Birth Date: abt 1846. Sources: Record of Service of Michigan Volunteers 1861-65.