Former Owner
- Robert Ranshaw1
- Robert Samuel Turner1
- Robert de Mol1
- Rudolphus Rasser Donatus1
- Samuel Allan1
- Samuel H. Putnam1
- Santander San Juan, Simon de, -17911
- Sebastiano Calvi1
- Sigurd Wandel1
- Solomon Joachim Halberstam1
- Stephan Rosinus1
- Stiftsbibliothek Kremsmünster1
- Thomas G. Bergin1
- Thomas Thorpe1
- Thomas Tresham II1
- Victor A. Schwarz1
- Virginia Taylor1
- Wilfrid Voynich1
- William Foyle1
- William Harrison Woodward1