Bruno Martin & Son, 1902-05-28, 1903-11-03, 1905-12-01, 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/11946 Accessed December 06, 2025.