Hi Robert, I too am looking for a Thomas Brown of that era. The Thomas Brown I'm searching for was mentioned in a 1780 Culpeper Co., VA. will abstract of a Christopher Zimmerman Jr. My Robert Fisher Brown Sr. [b. 1759, Culpeper Co., VA.] is listed as an heir, along with his brother Pollard Brown [b. 1763, Culpeper Co., VA.]. In that will abstract, a Thomas Brown and a John Brown are mentioned as wintesses. I'm trying to connect that Thomas and John Brown to my Robert & Pollard Brown.