- Lyne, James4
- Macomb County Planning Commission4
- Matthews-Northrup Works4
- Max Freissler (Firm)4
- Mayer, Harold M. (Harold Melvin), 1916-19944
- McClelland, D.4
- Melish, John, 1771-18224
- Mills, Ira B.4
- Minneapolis (Minn.). Engineer Department4
- Minneapolis, St. Paul & Sault Ste. Marie Railway Company4
- Mitchell, John, 1711-17684
- Mudgett, Helen Parker, 1900-19624
- Nolin, Jean Baptiste, 1648-17084
- Norris Peters Co.4
- Oldham, Jerry B.4
- Ontario. Bureau of Mines4
- Peterson, Dean M.4
- Pettibone, S.4
- Powell, Richard L.4
- Preus, J. A. O. (Jacob Aall Ottesen), 1883-19614