Former Owner
- George Templeton Strong2
- Harry Levinson2
- Imre Hodossy2
- James Bassett2
- John III of Portugal2
- John Wright2
- Joseph Barrois2
- Josephine Widener Wichfield2
- Messieurs Du Trieu2
- Peter Arrell Brown Widener2
- Peter Arrell Brown Widener II2
- Samuel Whitaker Pennypacker2
- Sydney Cockerell2
- Theodore Williams2
- Thomas Richardson2
- Thomas Thorpe2
- Victor Christ2
- Wilfrid Voynich2
- Abbot von Heselwang1
- Acton Griscom1