You may recall that in VA Memory chancery cause 019-1811 a Philip Thurman is named as a son of Nathan Thurman of Pittsylvania as paying the debt of Nathan's "grandson Bowker Brown" to John Wilson in 1809. Could this be the same man? He is later found in Highland, OH. Interestingly the Virginia Argus lists the death of a Bernard Markham in Chesterfield, VA Jul 1802. Clues?