Former Owner
- Margaret Barclay Wilson1
- Marie-François Duchesne de Beaumanoir1
- Mark Lansburgh1
- Marquis of Astorga1
- Marsden J. Perry1
- Mary W. T. Dickinson1
- Michael Tomkinson1
- Michel Ferdinand d'Albert d'Ailly1
- Monastery of Saint Peter (Erfurt, Germany)1
- Morell Thurston1
- Morris H. Morgan1
- Nathan Comfort Starr1
- Niccolò Perotti1
- Nicolas Antoine Labbey de Billy1
- Nicolas Fowle1
- Nicolas Moreau1
- Novalesa Abbey1
- Oliver R. Barrett1
- P. J. De Mat1
- Parish Church of St. John the Baptist1