William Harlow Hall was a resident of Mansfield on October 31, 1861 when he enlisted as a Private in Co. H of the 11th Regiment Connecticut Volunteer Infantry; he was killed in action on September 17, 1862 at Antietam, Maryland. The regiment was ordered to take the lower stone bridge over Antietam Creek and the assault began at 10 A.M. Over one third of the regiment was killed, wounded or missing in that battle. Asa W. Rouse, another Mansfield soldier from Co. H was also killed in the assault.
William H. Hall was born about 1844 in Mansfield to Ambrose and Esther (Batten) Hall. In the 1860 U.S. census in Mansfield, he is a 15 year old farm laborer in the household of Ambrose Hall. His brother, Lorenzo Ambrose Hall, a 19 year old farm laborer in the same household, was also a Mansfield Civil War soldier.
On December 21, 1872, Ambrose Hall applied for a dependant Father’s pension, No. 202,499 that was granted under Certificate No. 286,763.
William H. Hall is buried at the Bedlam Cemetery in Chaplin, Connecticut. His name is listed among the killed in action on the monument of the 11th Connecticut Volunteer Infantry Regiment on the battlefield at Antietam, Maryland.