HI... I don't know much about the slaves; however, there is a URL that I sent to the DYESS discussion group that had some black registrants on it.The URL was:ttp://www.ancestry.com/search/rectype/inddbs/3172.htm 186 responses for WWI Civilian Draft Registrants And, I think this was one of those links that you have only a few days to check it.So maybe you will find something there..I just remember seeing white and black Dyess listed. Let me know if you find something!!! Thanks!!!!