Henry A. Clark was a resident of Southington on September 5, 1861 when he enlisted as a Private in Co. A of the 7th Regiment Connecticut Volunteer Infantry. He was promoted to Corporal on March 1, 1865 and then promoted to Sergeant on May 1, 1865. He mustered out July 20, 1865 at Goldsboro, North Carolina.
In the descriptive muster roll of the 7th Regiment Connecticut Volunteer Infantry, his age is listed as 37 and his occupation as mechanic. He is described as 5’10” tall with a dark complexion and brown hair and grey eyes.
He was born in Mansfield about 1824. Henry A. Clark married Harriet Jaycox on May 3, 1855. Children include: George A. Clark born in 1866 and Harriet Adell Clark Pauer born in 1871.
Henry A. Clark died on November 18, 1905 and is buried at the Quinnipiac Cemetery in Southington, Connecticut.