- Minnesota. Office of Railroad and Warehouse Commissioners1
- Missaukee County Road Commission1
- Molitor, E.1
- Morrow, A. T.1
- Norges landbrukshøgskole1
- Norway. Statens Jordundersøkelse1
- Ontonagon Country, Inc1
- Ontonagon Herald Company1
- Osceola County Road Commission1
- Otsego County Chamber of Commerce1
- Otsego County Road Commission1
- Otsego Land Use Planning Committee1
- Out West Printing and Stationery Company (Colorado Springs, Colo.)1
- Pelz, C. E1
- Poore, Orson B.1
- Railroad Commission of Wisconsin1
- Rand McNally and Company.1
- Ravenstein, Ernst Georg, 1834-19131
- Ravenstein, Ludwig1
- Ray, F. G.1