British and Irish History: Biographies
- Margaret of Denmark
- Margaret Tudor
- Mary Douglas
- Mary I
- Mary II
- Mary of Guise
- Mary Queen of Scots
- Mary Stuart
- Mary Tudor
- Matilda (Normandy)
- Michael Collins
- Michael Davitt
- Michael Foot
- Michael Heseltine
- Michael Howard
- Michael Ray Dibdin Heseltine
- Mohammed Ali Jinnah
- Mother Shipton
- Mrs Beeton
- Nancy Witcher Astor Viscountess Astor