Hope this book helps someone also. I found both at the public library so you might be able to get them through the interlibray loan system.

I knew that state laws required free slaves to register but I never knew that they had to renew this registration ever so often.

"Register of free Negroes and Mulattoes Surry County VA".
by Dennis Hudgins
VA Geneological Society
Richmond VA 23230

This book gives you the Laws of VA 1793-1862

Dates of register 1794-1862
List name of former slave
Discription
Renewal Dates
Who the last owner was.

Ex: #47 TAMER a negro woman inclining to a bright complexion, has short hair 5'4 1/2"
high, well formed now aged about 23. Has rather more vacancy between her fore-teeth than common, liberated by Anselm Bailey by his deed of manumission recorded at Aug Court 1782. Registered this 1st day of OCt 1799.
Renewed July the 18th 1823 and now #313.