He married and had one child, Virginia.

Thomas Jefferson Douglas, Sr., from information on his military record, was mustered into service at Marion, Mississippi, 10 Sep 1861, his company becoming Co. B, 24th Regt. Mississippi Infantry, C.S.A. He was shot through the chest at the battle of Perryville, Kentucky, in October of 1862 and left at Perryville on authority of the surgeon and captured, then sent to Vicksburg, Mississippi, via Cairo on 5 Dec 1862, and exchanged. He remained in the Confederate Army until the end of the Civil War. He was interested in politics, and was elected Justice of the Peace for Beat 6 of Calhoun County, his commission signed by the Governor on 23 Jan 1874. Then in 1879 he was elected Sheriff of Calhoun County, his commission signed by the Governor 20 Nov 1879. Both his commissions still exist. He died from tuberculosis at his home at Bentley on 11 Jul 1887 and was buried in the Chesnut Springs Cemetery. He left a will, a certified copy of which exists, though the original and the probate material burned in the 1922 Calhoun County Courthouse fire.