Former Owner
- Petrus Hofstede1
- Philadelphia Rare Books & Manuscripts Company1
- Philip C. Duschnes1
- Philip C. Duschnes Rare Books & First Editions1
- Poor Clares1
- Québriac family1
- R. Stora and Company1
- Ramsau Monastery1
- Renzo Rizzi libri antichi1
- Robert Forrer1
- Robert Lyle1
- Robert de Hangest1
- San Cristoforo alla Certosa (Church : Ferrara, Italy)1
- San Francesco1
- Sarah Dauphinais1
- Sion Segre Amar1
- Sokol Books Ltd.1
- St. Mary's College1
- Theodore Parker1
- Thomas Rodd1