Source Information
Ancestry.com. Some of the descendants of John Michael Dübendorf, 1695-1778 [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2005.Original data: Diffenderffer, Frank Ried,. Some of the descendants of John Michael Dübendorf, 1695-1778 : more especially those directly descended through his grandson David Diffenderffer, 1752-1846. Lockridge, Iowa: Print. by Prouty, 1940.
