Marilyn, I have evidence of the marriage of William Brown and Caty Trover -- a copy of their marriage bond in Rockingham County, VA on 2 November 1804; the bond is signed by both William Brown and John Trover, who "made their mark" since neither could apparently write.This William Brown is my ancestor; he and Caty had at least two children together, probably three:Mary (Polly) Brown (b. 1806 KY), who married Willis Alfred Clinton in Christian Co., KY in 1827 (I have their marriage bond also); Sarah (Sally) Brown (b. about 1813, who never married as far as we know; William Brown II (birth year unknown), who disappeared from the home supposedly after a disagreement with his father.
All the Brown children were born in Kentucky, so William and Caty Brown probably moved there right after their marriage. We have yet to find them in the census, however; perhaps it was because they were living with the family and old William Brown was not head of the household.The William Brown children started moving to Camden County, MO in 1838; Polly & Alfred Clinton were first, then Lewis and John in 1843, and later yet old William Brown and daughter, Sally Brown, before 1860. They all died in Missouri.
I suspect the 1823 bill of sale you have occurred when Caty Trover Brown died; the list hints that someone was selling out to move, so perhaps he had been living on his father-in-law's land when Caty was alive and moved after she died.
Old William Brown I probably married a second time in the mid-1820s and had two more sons, John Henry Brown (1827) and Lewis Sinclair Brown (1829).We do not yet know the name of this second wife, but I descend from Lewis Sinclair Brown.
I found the John Trover will in 1832, but if you have more evidence of the union of William Brown and Caty Trover, I would be delighted to learn it!If you want more information on Caty's descendants, I can provide that too.