Former Owner
- Martin of Aragon1
- Michel Guibé1
- Monastery of San Bartolmeo, Arezzo, Tuscany1
- Nell Wheeler1
- Neuman-Walter1
- O. A. Bump1
- Ohio State University Center for Epigraphical and Palaeographical Studies1
- Ohio State University School of Music1
- PBA Galleries1
- Parish Church of St. John the Baptist1
- Paul Durrieux1
- Payne and Foss1
- Payre-Grolée-Virville family1
- Philip Sills1
- Phillip J. Pirages Fine Books & Manuscripts1
- Preston A. Perry1
- Rev. T. Barnes1
- Richard Firth Green1
- Richard Griffith1
- Robert Villareal1