Since the original poster hasn't responded since the initial post, you might want to consider posting your query elsewhere. There is a Brick Wall message board which might be useful: Topics/ Research Resources / Brick Walls
Where ever you post, be sure to include the details you have gleaned from the various census records, such as addresses and his wife's name. Provide the names and dates for any children as well.
If you haven't done so, check out Cyndi's List for some helpful links with regards to slavery in the United States:
http://www.cyndislist.com/african-american/slavery/Good luck.
-- board admin.