Former Owner
- Keifer1
- Lisa Kiser1
- Maggs Bros Ltd1
- Margaret of Croy1
- Margareta van der Dycke1
- Margaretha van Cleyburg1
- Marion Lawrence1
- Martinus Nijhoff1
- Messieurs Du Trieu2
- Minnis, Katherine1
- Neuman-Walter1
- Oliver Henry Perkins2
- Otto Ege2
- Paul Louis Feiss1
- Paul Riant1
- Philip van Alfen1
- Phillip J. Pirages Fine Books & Manuscripts2
- Robert Hoe III2
- Sigurd Wandel5
- Sydney Cockerell3