Newspaper articles about Tom Wuelpern’s energy efficient house, 1987-03, Container: Trew Family - Box 2, Folder: 5 - Miscellaneous Wuelpern. Families, RG-FAMILIES. Hoyt Library Archives. https://archive.saginawlibrary.org/repositories/2/archival_objects/22660 Accessed December 15, 2025.