Hi,

Iwanted to respond to your initial question. There are 2 books that may be of value to you.One is called Race,slavery and Free blacks: Petitions to Southern Legislatures and County courts1776-1867:A Documentary History by Loren Schweninger
http://www.archives.gov/nhprc/annotation/june-98/southern-petitions.html
Gotothe 8th paragraph.

Schweninger wrote another book called The Southern Debate over Slavery,Volume2:Petitions to Southern County. http://books.google.com/books?isbn=0252032608
Schweninger basically stated that in Alabama,Florida,South Carolina and Georgia state laws required all free blacks to obtain a white guardian. It goes on and explain about Georgia's piece of legislature that was passed in 1810 called"an act for regulating and governing free persons of color coming into the state or residing therein"

There is another book called Becoming Free,Remaining Free:Manumission and Enslavement in New Orleans ,1846-1862 by Judith Kelleher Schafer(2003).This book explains a little bit more information on the 1859 Louisiana state law asking all free blacks to look for a white person and make him or her their slave master. From what i understand 17 people actually did this in Louisiana.

Finally South Carolina African American Resources
go to http://emilyevaughn.com/scaaresources.htm
South Carolina Guardian ship papers. There is a link for these papers for Free Blacks with White Guardians for Anderson,Chester,Fairfield,Greenville,Lexington,Kersham,Marlboro,Pendleton,Pickens and Union Counties.The cost to order this list is $15.00.
Wishing u best on your research.