Former Owner
- Wilfrid Voynich11
- Dropsie College for Hebrew and Cognate Learning10
- Edward Alexander Parsons10
- Eric J. Johnson10
- Philip Milburn10
- Phyllis Walter Goodhart Gordan10
- William Augustus White10
- Charles William Dyson Perrins9
- E. Dwight Church9
- Gabriel Wells9
- Henry William Poor9
- John D. Stanitz9
- John Dozier Gordan9
- Karl Wilhelm Hiersemann9
- Leo Olschki9
- Leo S. Olschki Editore9
- Louis H. Silver9
- Mary W. T. Dickinson9
- William Taylor Scheide9
- William Young Ottley9