Source Information
Ancestry.com. Some descendants of Hans David Billman of Northampton County, Penna., and related families [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2004.Original data: Cramer, Alma H.. Some descendants of Hans David Billman of Northampton County, Penna., and related families. Washington, D.C.: unknown, 1968.
