David Cotten and his wife Catherine Crowder lived in Abbeville Co., SC. Their son John was born in 1815 in SC and died in 1899 in Attala Co., MS. We have a descendant of John in our DNA project and his results show that he was related to a number of other Cottens whose lines go back to western Virginia and North Carolina. See "family 9" in the Cotton DNA project. http://www.skylinc.net/users/cottondna/
Thomas Cotten was born in 1820 when his mother was a widow living in South Carolina. We had a couple of his descendants in the project as well and their results proved that they were male line descendants of a man named Foster. There were five Foster families on the same census page as Catherine Cotten but there is no proof as far as I know as to which Foster was Thomas Cotten's father. Both of Thomas's descendants recently withdrew from the project so at present the family is not represented on the DNA website. If you know of a direct male line descendant of Thomas, we would be glad to have him join the project.