Names
- MTV1
- MacArthur, Arthur, 1845-1912.1
- MacArthur, Douglas, 1880-1964.1
- MacArthur, Jean Faircloth.1
- MacGregor and Company.1
- Madison, James, 1751-18361
- Mahle, Katherine Austin, 1945-1
- Mahon, Maureen1
- Manistique and Lake Superior Railroad Company.1
- Manning Bros.1
- Marching Hundred1
- Mark, Clark.1
- Marlow, Eily, 1975-1
- Marsh, Elisabeth1
- Martin, Joan M. (Joan Marie)1
- Martin, Wayne1
- Mary Elizabeth McCornack1
- Mason, Barbara1
- Mathers, Frank Curry1
- Maults-By, Carl1