- According to EdwardsGenerations,
"Service Record: Enlisted as a Private on 20 July 1861 at the age of 24; Enlisted in Company A, 13th Infantry Regiment Massachusetts on 20 July 1861; Killed on 30 August 1862 in 2nd Bull Run, VA. (Sources: Massachusetts Soldiers, Sailors and Marines in the Civil War. (MASSCW) Published in 1931-37 by Adjutant General; The Story of the 13th Massachusetts Volunteers. (H13thMA) Published in 1894 by Estes & Lauriat)."
According to McLellan, his name appears on a monument in Gorham: "Albert S. Estes, 13th Mass Regiment, Killed at Manassas, Va, Aug. 29, 1862, aged 25."
He is included on the Civil War page.