Former Owner
- Huskan-ordi (Monastery in Muradiye, Turkey)1
- I. I. Middleton1
- Ioannēs Grēgoropoulos1
- Irvine Masson1
- Isaac ha-Rofe ben Moses ibn Elezar1
- Isabel de Bellusseau1
- Isabella d'Este1
- Israel Gollancz1
- J. A. J. Barclay1
- J. A. Shanley1
- J. M. C. Armbruster (Firm)1
- J. Martini1
- J. Techener1
- Jacob Henry Burn1
- Jacques Vellekoop1
- James Dickson Clark, active Brooklyn in 1860.1
- James Dyer1
- James Ellsworth1
- James Halliwell-Phillipps1
- James Laurie1