The information in the book by Richard Covault leaves much to be desired in CORRECT information. I do know a person that does have the book her name is Margaret Covault she lives in OH. You can also contact a Roger Covalt on his web site by just typing his name on your address bar the same for a man named Colt also by entering his name on your address bar.Margaret has ALL of the CORRECT information on the Covault line. Another way just enter the name Covault on your address line you will be amazed what you can find. I have been doing genealogy since 1960, and have over 6,000 name on my computer. You maight also try to contact the Gustin family also in Ohio they have many files on the Covaly, Covault, Cavolt, etc. They are decendants of the Gustin's of Abrahams wife.