Henry Passolt, 1889-08-22, 1892-09-07, 1902-06-18, Container: Letterheads of Saginaw Businesses - Box 1, Folder: Three. Business and Industry, COL-BUSINESS. Hoyt Library Archives. https://archive.saginawlibrary.org/repositories/2/archival_objects/11975 Accessed December 15, 2025.