- Merrell, H. B. (Harvey B.), publisher1
- Meyer, Joseph, 1796-18561
- Michigan Central Railroad Company1
- Michigan Land & Iron Company1
- Michigan Mutual Life Insurance Company.1
- Michigan School Furniture Company.1
- Michigan Syndicate1
- Michigan. Department of Commissioner of Railroads1
- Migeon, J.1
- Miller & Co.1
- Mitchell & Hinman.1
- Mitchell, John, 1711-17681
- Mitchell, S. Augustus (Samuel Augustus), 1792-1868, cartographer.1
- Miwa, Hideharu.1
- Miyagi, Keiten.1
- Molitor, Albert1
- Molitor, E.1
- Monin, Charles V.1
- Monji, Tominosuke.1
- Moore, J. M., C.E.1