Prall & Jones, 1889-06-03, 1892-02-04, 1889-12-16, 1890-09-16, 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/11984 Accessed December 15, 2025.