Former Owner
- Marion Lawrence1
- Mary Elizabeth Holte1
- Mary Schell Collins1
- Mary W. T. Dickinson1
- Michael Greenberg1
- Michael Tomkinson1
- Michel Guibé1
- Moissac Abbey1
- Morot1
- New York Academy of Medicine1
- Nicholas Chevalier1
- Nicholas Herry1
- Nicolas Rauch1
- Norman H. Strouse1
- Notre-Dame de Macourt monastery1
- Noël Pinelli1
- Oliver R. Barrett1
- Oswald Carl Friedrich von Seilern und Aspang1
- Otto Orren Fisher1
- P. J. De Mat1