behind AotW

Anderson County, Texas newspaper editor and politician Matthew Dale was Major of the First Texas Infantry at Sharpsburg on 17 September 1862:

…acting as lieutenant-colonel, had moved from the right, and was conferring with me [Colonel Work] as to the propriety of advancing or at once withdrawing, when he was killed …

His photograph as Texas State Representative (1860) is online from the Legislative Reference Library of Texas.