- Lewis, Samuel, fl. 1831 [delineator]1
- Lewiston Boosters1
- Libraries1
- Litzner, L.1
- Livermore, W. R. (William Roscoe), 1843-19191
- Livingston County Road Commission (Mich.)1
- Longyear, John Munro, 1850-1922, compiler1
- Lucas, Fielding, Jr., 1781-18541
- Luce County Road Commission1
- Lyon, Lucius, 1800-18511
- M.M. Dickson & Co.1
- Mackinac County (Mich.)1
- Macomb, J. N. (John N.), 1810 or 1811-18891
- Map Library1
- Marquette County (Mich.)1
- Mason County (Mich.)1
- Mathews & Longyear.1
- Matthews-Northrup Company1
- Matthias, Benjamin I.1
- Mayo, Geo. U. (George U.)1