- Houghton, Douglass, 1809-18452
- Hubbard, Bela, 1814-18962
- International Society of Christian Endeavor1
- J.H. Colton & Co.1
- Kentucky Geological Survey1
- Kern, R. H., topographer1
- Krause, Frank (Civil engineer)1
- Langellier, A. L.1
- Longyear, John Munro, 1850-1922, compiler1
- Lyman, Benjamin Smith, 1835-19201
- Matthews-Northrup Company1
- Maull Co.1
- Mayo, Geo. U. (George U.)1
- McClelland, D.1
- Meisel, A. (Augustus)1
- Merrell, H. B. (Harvey B.), publisher1
- Michigan Central Railroad Company1
- Michigan Mutual Life Insurance Company.1
- Michigan Railroad Commission5
- Michigan Syndicate1