Person depicted
- Marie Potts4
- Marius (Emperor of the Gallic Empire)2
- Mars (Roman deity)17
- Marsyas (Greek mythic figure)1
- Martin A. Baumhoff2
- Marvin Lee Marine [Pomo]1
- Mary (mother of Jesus)75
- Mary Ann Copperfield2
- Mary Charles1
- Mary Frank1
- Mary LeCron Foster1
- Mary Standley1
- Mary Virginia Thornburgh-Cropper1
- Masinissa (King of Numidia)1
- Matthew C. Perry2
- Maurice (Byzantine Emperor)6
- Max Radin1
- Maxentius (Emperor of Rome)3
- Maximian (Emperor of Rome)9
- Maximinus Thrax (Emperor of Rome)12