" Rev. John Mayo and His Descendants " by Jean Mayo Rodwick, published in 2001, contains information concerning the family origins of Rev. John Mayo, and information about him and his descendants. I would be happy to do look-ups for anyone researching their Mayo ancestors, and could put you in contact with the author if you would like to acquire a copy of the 1,000 page book. I also have all of my Mayo research to date on the Mayo Genforum board, as well as some neat stuff stored on my computer. If anyone is interested, I would be glad to help.