Private Thomas Gatlin was born was ca. 1844 in Alabama.
His family relocated to Gadsden County, Florida ca. 1848.
In 1860, William was living at the residence of his father, Richard, along with his mother and 10 brothers and sisters. His profession was given as a laborer.
He, along with younger brothers Richard and William, enlisted in Davidson’s Company on March 12th, 1862 at Quincy, Gadsden County, Florida.
Thomas was present with the company until September 3rd, 1862 when he was detached for service as a wagoneer. He returned to the company prior to November 12th, and was again detached for service on December 20th, this time as a pork house guard Knoxville, Tennessee. He continued in this service until about March 12th, 1863; he returned to the company and was again detailed for detached service, this time to the city police at Knoxville, Tennessee on April 11th.
He returned to the company about April 30th, was present with it from that time until September 19th, 1863 when he was killed in action at the Battle of Chickamauga.
His place of internment is unknown.