Contributor
- McGill-Warner Co (5)
- A. Trúb & C. Aarau. (2)
- Canada. Natural Resources Intelligence Branch (2)
- Geological Survey (U.S.) (2)
- Grindhem, M. J. (Martin Johansen) (2)
- National Survey (Firm) (2)
- Vermont. Bureau of Publicity (2)
- Vermont. Office of Secretary of State (2)
- A. Hoen & Co (1)
- Australia. Commonwealth Immigration Office (1)
- Berthrong, I. P (1)
- Burkland, A. O (1)
- Canada. Natural Resources Intelligence Service (1)
- Česká akademie věd a umění. (1)
- Daidy, George A (1)
- Danforth, F. A (1)
- Elwell, J. Ambrose (John Ambrose), 1897- (1)
- First National Bank of Saint Paul (1)
- Gleissner, Max J (1)
- Gould, James F (1)