- Hopkins, Griffith Morgan, Jr.3
- Minneapolis (Minn.). Engineer Department3
- Minnesota. Office of Railroad and Warehouse Commissioners3
- R.L. Polk & Co.3
- Sealing, H. E.3
- Sublette, G.W.3
- United States. Mississippi River Commission3
- United States. Office of Indian Affairs3
- Andreas, A. T. (Alfred Theodore), 1839-19002
- Cox, William T. (William Thomas), 1878-19612
- Ely Commercial Club (Ely, Minn.)2
- Ferd. Mayer & Co.2
- Graves, Henry Solon, 1871-19512
- J.H. Colton & Co2
- Minn Saint Louis County Highway Dept.2
- Minnesota Forest Service2
- Minnesota Geological Survey2
- Minnesota Transfer Board of Trade.2
- Minnesota. State Drainage Commission.2
- Poole Brothers2