Former Owner
- John William Burns1
- John William Harshberger1
- Joseph May Spetzler1
- Joseph Pope1
- Julia Burgess1
- Karl F. Morrison1
- Lathrop C. Harper, Inc.1
- Lawrence J. Schoenberg1
- Linda Ehrsam Voigts1
- Lisa Kiser1
- Louis d'Aumont de Rochebaron1
- Lucien Magne1
- Lucy Evans Chew1
- Léon Techener1
- Mademoiselle de Malberghe1
- Mayfair Rare Books and Manuscripts1
- Michel de Léon1
- Mikhail Golitsyn1
- Monastery of Saint Peter (Erfurt, Germany)1
- Museo Cavaleri1