It has been years since you posted this, but I have a LOT of information on Dempsey D. Thompson. He married Jane Kennedy in Lafayette Co., AR March 31, 1859. He then enlisted in the CSA Crawford's 1st/10th Arkansas Cavalry, Co. C there in 1863. He remained in AR until at least 1868 or 1869 where his third child was born. His last child (that I know of) is Dempsey D. Thompson (Jr.). He was born in Cass County, Texas (near the Caddo Parish line), and he ended up marrying Lola Hunt, the daughter of John Hunt and Nancy Elizabeth Thompson. In 1910 Dempsey's father "Dee" said to be 84 years old and widowed was living with him in Angelina County, Texas where he most likely died. Dempsey D. Thompson, Jr. born November 1, 1872 died in Angelina Co. TX in 1945. It names his father as Dempsey D. Thompson, Sr., but does not name his mother. Dempsey, Jr. is buried in Whitehouse Cemetery in Lufkin, Angelina Co., TX, and most likely his father is, too. I am from Lufkin, so I have been to the cemetery, but at the time was not aware of the Thompson family, other than Nancy E. Thompson who had married John Hunt (who are also buried there).
If anyone would like to write to me to learn more, you can contact me at firstname.lastname@example.org
- Dempsey D. Thompson was the son of Archibald Thompson and Nancy Illes and a brother to William Frederick Thompson, whose daughter Nancy married John Hunt.