Former Owner
- Mario Maffei1
- Marion H. Gottfried1
- Marion Lawrence1
- Mariota Lyle1
- Mark Lansburgh1
- Markus Fugger1
- Martin Breslauer1
- Martin Picker3
- Martin Schøyen2
- Martinus Nijhoff1
- Marvin-L. Colker3
- Mary Augusta Strachey1
- Mary Elizabeth Holte1
- Mary Lacaita2
- Mary Lusher1
- Mary Schell Collins1
- Mary Stanley, Countess of Derby1
- Mary Talbot, Countess of Shrewsbury1
- Mary W. T. Dickinson10
- Mary, Queen of Scots1