There are two Abrahams. One is Abraham Theobold DeWalt 1690. The other is Abraham Dewalt Theobold 1590. I also ran across another spelling of the name Abraham, it was spelled Abrahem. If any search is made beyond these spellings, you might try DeWald, Thebold, or other suggested variations. The time frame and place these folks lived in was a very dangerous Era in French, German history. (See Thirty Years War).