Re: Ambrose Powell
A great deal has been put together about Ambrose by June Powell Orton (now deceased) and on the JohnPowellDescendants group on Yahoo.
Ambrose was born in Burke Co. NC, married and had his children there, moved to TN probably after the death of his first wife (Miss HOLT)(her first name is not known) and remarried to Margaret KNOX, widow of James Knox. Ambrose died 1827 in Maury Co TN where, in 1830, there was a lawsuit filed by John Holt which named all of his heirs. There are several transcriptions of this record on sites around the web.
I do not know whether anyone knows exactly where Ambrose was buried. His land in Maury Co. was apparently on the Natchez Trace, so he may have been buried there.