- Crowther Bros. Milling Co.1
- Cuneo Brothers1
- F. M. Martin Grain & Milling Co., Cheney, Wash., and W. F. Williams, San Francisco, Calif.1
- Globe Mills1
- H. L. Dalton, Oakland, Calif.1
- Harold P. Hutton1
- Haslett Humboldt Warehouse1
- Haslett Warehouse Co.1
- Home Bakery1
- Jennison Mills Co.1
- Kalispell Flour Mill Co., Kalispell, Mont.1
- Log Cabin Baking Co.1
- Mark P. Miller Milling Co., Moscow, Idaho1
- Maryland Pacific Cone Co.1
- Moore-Ferguson & Co.1
- Perfection Bread Co.1
- Peter Lefevre & Co.1
- Pillsbury Flour Mills Co.1
- Plains Montana Mills, Plains, Mont.1
- Seattle Flour Mills, Seattle, Wash.1