Thank you for your work, Betty, but it can't be the same Ambrose. Mine is white, born 1805-1806, and married an Amelia Catherine Davis (b. 1832 NY) in 1868. In 1850 he was married to a Cathrine b 1808 NC, in 1880 he was married to a Mary b. 1840 KY. Interestingly, Amelia Catherine was still alive in 1880, possibly divorced??? Also, the Ambrose I'm looking for was a farmer, not a clergyman as the one in this 1860 census shows.
I do appreciate your help, though!