Hi Harv and Lee! Glad to see there's finally a Mountcastle forum up and running. The Duke family says Joab Mountcastle was married to Ann Duke, daughter of James Duke and Mary Byrd. Thsi marriage is mentioned in the first book on the Duke family written by a Mrs. Brandenberger. Apparently, she wrote a second book, too. I have seen neither and am trying to get hold of one.I can't find any evidence of a daughter named Ann for any Zachariah Nance I've come across. One of his sons was married to an Ann, but the time period is wrong for it to be this Ann. James Duke did have a daughter Ann and it looks as if this is the correct person. I'm sure there is a Nance-Mountcastle connection as just about every family in New Kent-Charles City seems to be related to every other family, but I don't think this connection is it. Would love to get this cleared up soon.