Alexander Tracy enlisted in the Missouri Home Guards at Canton, Missouri on July 15, 1861, as a first lieutenant; he was mustered into service in Company F, 21st Missouri Infantry in February 1862. After spending the fall of 1862 in Missouri recruiting for the regiment, he returned to the field, was promoted to captain in February 1863, and assumed command of the company.

The 21st Missouri Infantry fought at the battles of Shiloh, Iuka, Corinth, Tupelo, Nashville, and Fort Blakely.

Tracy resigned his commission on August 29, 1865.

Carte-de-Visite by Unknown Photographer

Image Courtesy Wilson’s Creek National Battlefield; WICR 31676