Russell

I am looking for information concerning Dempsy RUSSELL and his wife Susan. They are my ggggrandparents. They appear in the 1830 federal census in Darlington County. Dempsy was born in 1807 in SC and Susan was born in 1812 in SC. By 1840 they had moved to AL and by 1850 they were in MS. Any information would be appreciated. I have information on their children and descendents.