Postcard of Chas. H. Kretschmer Grocery Co. automobile, Box: One - Kretschmer Grocery Store and Kretschmer Wheat Germ Corporation, Folder: One. Business and Industry, COL-BUSINESS. Hoyt Library Archives. https://archive.saginawlibrary.org/repositories/2/archival_objects/6055 Accessed April 09, 2025.