Obit: Virginia L. (Kalk) Dufenhorst, b. 1915, Caldwell, WI; lived IL, ID.
Obit dated 1 Jan 2006 available www.Idahostatesman.com. Virginia daughter of August and Elsie Kalk; she was preceded by her husband, Frank I. Dufenhorst, on 12 Oct 1964; survivors include 5 children.
I am no relation to this family.