This is merely surmising on my part, but I believe that Nancy, wife of William Whitlow, was a dau. of George Davis and Sarah McElroy. If this is the case, then Thomas Rollinson was a bro-in-law as I believe that his wife was Amelia Davis, sis of Nancy. I am a descendant of Golston Davis, son of George & Sarah, who md. Elizabeth Whitlow, who I believe is a sis of William. So far, I have no concrete evidence, but given names by the various families are very much the same and as this was a common practice in VA and NC, this fits the picture to a "T". Again, this is only surmising, but I have just received some info which I want to verify and should put this all in proper perspective.