Augustus J. Lythgoe was the son of a British immigrant. He was born in the Aiken area and educated at the South Carolina Military Academy. He worked on the Blue Ridge Railroad until it was suspended. (The remains of this failed railroad are still visible in the Stumphouse Tunnel, north of Walhalla.) Lythgoe then moved to Abbeville and married Margaret Isabella Wier. With his brother-in-law, John A. Wier, Lythgoe went into the mercantile business under the name of Lythgoe & Wier. During the Civil War, Lythgoe joined the 19th SC Regiment, attaining the rank of colonel by December 1861. He was killed at the Battle of First Murfreesboro and buried at the battle site. He also has a marker in Upper Long Cane Cemetery and was survived by a wife, one son, and two daughters.