Former Owner
- Stiftsbibliothek Kremsmünster1
- Stuart Rose1
- Sydney Cockerell16
- Sébastien de Rosmadec, marquis de Molac1
- Süleyman Çelebi1
- T. Fownes6
- Taqī ibn ʻAlī al-Qummī1
- Theodore Parker1
- Thomas Baker1
- Thomas Bateman2
- Thomas Chomley1
- Thomas Corser1
- Thomas Eyre1
- Thomas FitzRoy Phillipps Fenwick7
- Thomas Herbert, 8th Earl of Pembroke1
- Thomas Martin1
- Thomas Moore1
- Thomas Pearson1
- Thomas Phillipps128
- Thomas Rawlinson1