I have still been trying to connect my Virginia Brooks to your SC Brooks.Sorry I could not answer you sooner.I am trying to find where the families split off most likley in VA with some splitting off into SC, your branch?
It is too ironic that I have ancestors Bartlett Brooks, with Brother David and James, all born around the 1750-60 era in VA Amelia, Prince Edward, Charlotte, Lunnenburg area. Bartletts daughter Nancy born 1789 PE County named her first son Zachariah Calvin Brooks. She married an unknown Brooks after the end of her first marriage to James Nevilles.
James moved to NC and named a son Zachariah also.
Bartlett and David both had first born sons named Gideon Brooks.
Thomas Brooks was surety at the marriage of Bartlett Brooks to Sussannah Smith in 1788 PE co.
There is a Thomas Brooks born abt. 1720 to a Thomas Brooks in VA.This could be where the families split if the 1720 Thomas Brooks had more sons and they split into different areas of the frontiers.
If you get this message let me know your thoughts.