Former Owner
- Jeanne Françoise Maclovie de Carman1
- Jeanne de Goix1
- Jehanne Seigneau1
- John B. Stetson Jr.1
- John F. Fleming1
- John Harvey Treat1
- John Trotter Brockett1
- Joseph François René de Kergariou1
- Joseph Whitney1
- Latham family1
- Lathrop Colgate Harper1
- Libri, Edoardo, active 20th century1
- Louis César de La Baume Le Blanc1
- Margaret F. Woodward1
- Marguerite de Fontenay1
- Marie Ange-Toussaint Placide de Ferron1
- Martinus Nijhoff1
- Middle Hill Rare Books & Manuscripts AB (Stockholm, Sweden)1
- Minnis, Katherine1
- Monsieur de Bel Air1