As my heritage in mostly European I am not specifically looking for ancestors of color, though I know of some Native ancestry scattered throughout my family history. I have recently come across a family tree on Rootsweb.com that begins a few generations before my George Henry Alexander that may be of help. Though I have not read through all of the creators notes I did find a few mentions of slave ownership that I frankly found unsettling. Attached to the names associated with this tree is the last name Warren. The tree can be seen by going to the Rootsweb site and searching for John J. Crittenden Alexander born 1842 in Cumberland Co. Kentucky in the family tree section. I wish you luck with your research.