Publisher
- Rand McNally and Company15
- Indiana. Legislative Bureau13
- Indiana. State Highway Commission (1919-1953)13
- Stevens, Katherine (Mapmaker)12
- Indiana. Division of Fish and Wildlife11
- Indiana. Division of Geology10
- H.M. Gousha Company9
- Indiana. State Highway Commission (1961-1981). Division of Planning9
- The Survey9
- United States. Bureau of Agricultural Economics9
- Даг. Водхоз9
- Indiana. Department of Conservation8
- Геодезический комитет ВСНХ-СССР8
- Indiana. State Highway Commission (1961-1981)7
- Scarborough Company7
- Ed Leary & Associates6
- George F. Cram Company6
- [United States Engineer Office]6
- Наркомрыбпром Главрыбвод6
- C.S. Hammond & Company5