Were Matthew and William Buchanan brothers of an Agness McCall(her married name), whose will they witnessed in Washington Co., VA on 26 August 1819? Matthew and William also gave oaths when Agness' will was proved in Washington County Court on 21 October 1823. I have wondered if Agness' maiden name was Buchanan.
Agness was married to a Thomas McCall. Matthew also was a witness to the will of Thomas McCall in Washington Co., VA on 5 March 1807. Will was recorded on 16 June 1807.