I have numerous letters written to and from my ggg grandfather Paul Haralson who lived in Caswell County in the early 1800's. I recalled the name Roan and searched the letters. There are several mentions of a Dr. Roan and wife between April,1839 and March,1843. First names of the Roans were not mentioned but he mentions the couple joining the Presbyterians in Feb,1843 and Dr. Roan being sick in March,1843. If you think this may be your man I can e-mail you transcripts of these letters.