Publisher
- S. Augustus Mitchell8
- Geological Survey Division (Urbana, Ill.)7
- Iowa Geological Survey7
- Rand McNally & Company7
- A.T. Andreas4
- First National Bank (Haywarden, Ia.). Farm Loan Department4
- Kean Map Co.4
- Rand McNally and Company4
- The Bureau4
- Thomas, Cowperthwait & Co.4
- Union Publishing Co.4
- Anderson Publishing Company3
- C.R. Allen3
- Alton Democrat (Firm)2
- Anderson & Goodwin Co.2
- Asher & Adams2
- C.R. Allen & Co.2
- J.H. Colton2
- J.H. Colton & Co.2
- Johnson & Browning2