Former Owner
- John Church1
- John D. Stanitz4
- John Dozier Gordan2
- John Fletcher Hurst1
- John Frederick Lewis22
- John Jarsey1
- John Lee1
- Joseph Barrois1
- Judith Lady Montefiore College5
- Julius de Cardelinis1
- Jāgeśvara1
- Karva, Lakṣmaṇabhaṭṭa2
- Kenneth X. Robbins1
- Khiste, B.N1
- Kāle, Gālambhaṭṭa1
- Kāle, Janārdana1
- Laurence William Hodson1
- Lawrence J. Schoenberg22
- Leicester Harmsworth1
- Leonardus Martinotius1