Former Owner
- John Peacock1
- John Ruskin1
- John Sotheby1
- John Willis1
- John Wright1
- Joseph E. Widener6
- Josephine Widener Wichfield2
- Jules Bonhomme1
- Jérôme Pichon1
- Laurence Claiborne Witten II1
- Laurent Campagne1
- Lawrence J. Schoenberg4
- Legoué1
- Librairie Damascène Morgand1
- Llewelyn Lloyd-Mostyn, 3rd Baron Mostyn of Mostyn1
- Louis César de La Baume Le Blanc1
- Lydia Thompson Morris1
- M. De La Tour1
- Maggs Bros Ltd1
- Maksymilian Mielzynski1