- R.W. Johnson & Son (Firm : Saint Paul, Minn.)2
- Railroad and Warehouse Commission of the State of Minnesota2
- Rinker, Andrew2
- Sewall, Joseph S. (1827-1917)2
- Simerl, R. A.2
- U.S. Lake Survey2
- W.A. Fisher Company2
- A. Hoen & Co.1
- A.S. Barnes & Co.1
- Abbot, E. T. (Civil engineer)1
- Abbott, E. T. (Edward T.), 1847-19381
- Adept Map Co.1
- Akerson, E. A1
- Architects and Engineers Supply Company1
- Automobile Club of Saint Paul1
- Avery, Carlos, 1868-19311
- Bayley, William Shirley, 1861-19431
- Benneche, H. W.1
- Beygeh Engraving Co.1
- Board of Game and Fish Commissioners of Minnesota1