- Madden, Mary Jane (1)
- Madden, Nan (director of the Minnesota Budget Project) (1)
- Maddow, Doris (1)
- Madeja, Kevin (Engineer) (1)
- Madison Association of Commerce (1)
- Madoz, Pascual, 1806-1870 (1)
- Mae, Minda (Guest) (1)
- Maffi, Luisa (2)
- Magann, Arthur S (2)
- Maggs Brothers (dealer) (3)
- Magner, Thomas F. (1)
- Magney and Tusler, Inc. (Architect) (20)
- Magney and Tusler, Inc. (Architect, Engineer) (26)
- Magrath, C. Peter (7)
- Maguire, Charlie (1)
- Mahan, Laura (1)
- Mahler, Blanche (1)
- Mahoney, Michael S. (1)
- Mahoney, Thomas (1)
- Mahony, F. E (2)
