Former Owner
- John Henry Backhouse1
- John Peacock1
- John Ruskin1
- John Willis1
- John Wright1
- Jules Bonhomme1
- Laurence Claiborne Witten II1
- Laurent Campagne1
- Legoué1
- Librairie Damascène Morgand1
- Llewelyn Lloyd-Mostyn, 3rd Baron Mostyn of Mostyn1
- Louis César de La Baume Le Blanc1
- Lydia Thompson Morris1
- Maggs Bros Ltd1
- Maksymilian Mielzynski1
- Marc-René de Voyer d'Argenson1
- Margaret Le Seigneur1
- Marguerite of Lorraine1
- Marion Lawrence1
- Matteo Luigi Canonici1