Former Owner
- Mary Lacaita1
- Mary Stanley, Countess of Derby1
- Mary W. T. Dickinson1
- Michael Greenberg1
- Mikhail Golitsyn1
- Milton Fischmann3
- Mirmellus Arnandi1
- Monasterio de El Paular1
- Mrs. Turnbull1
- Nancy McGrath1
- Nicholas Chevalier1
- Nicholas Herry1
- Oliver Henry Perkins1
- Oliver R. Barrett1
- Otto Ege26
- Otto Orren Fisher1
- P. Desq1
- Park Abbey1
- Parke-Bernet1
- Paul Gruel1