Creator
- Marquette County (Mich.)1
- Mason County (Mich.)1
- Matthews-Northrup Works1
- McCracken, T.1
- Mead, Cecil A.1
- Mecosta County Road Commission1
- Metcalf, Victor Howard1
- Michigan Bell Telephone Company1
- Michigan State College. Conservation Institute1
- Michigan Technological University1
- Midland County (Mich.)1
- Midland County Road Commission1
- Missaukee County Road Commission1
- Mitchell, S. Augustus (Samuel Augustus)1
- Monroe County (Mich.)1
- Monroe County Road Commission1
- Montcalm County Road Commission1
- Montmorency County (Mich.)1
- Morse, Sidney E. (Sidney Edwards)1
- Mosher, L. W.1