Hi, The family Association that I belong to is "Dunkelberger's in America" You can contact Ms. Betty Jacoby Sec. 2920 Leiszs Bridge Rd. Reading, Pa. 19605. 610/929-0473. The latest genealogy book was published in 1997 and has alot of info developed over many years. If I can be of further help send me an e- mail. Best Regards.