Enlisted on 11/3/1861 as a private. On 11/19/1861 he was mustered into Co. B, 1st Vermont Cavalry; promoted to corporal on 3/24/1863; to sergeant on 8/21/1863. POW 9/13/1863 Culpeper Court House, VA; paroled 9/29/1863 (place not stated). He was mustered out on 11/18/1864.
Son of Benjamin Chapman III and Lydia Turnbull. Married Betsey Woodward and had 2 children, known:
Daniel Robert Chapman
Elizabeth "Lizzie" Chapman
d. 14 Oct 1890, age: 58yr 8mo