Part of the Hoyt Library Archives Repository
Zwack Family Book, Container: Zwack - Box 1. Families, RG-FAMILIES. Hoyt Library Archives.
Zwack Family Book, Container: Zwack - Box 1. Families, RG-FAMILIES. Hoyt Library Archives. https://archive.saginawlibrary.org/repositories/2/archival_objects/21070 Accessed December 06, 2025.
