Former Owner
- Adam Clarke1
- Admont Abbey Library1
- Alan G. Thomas1
- Albert C. Baugh1
- Albert Figdor1
- Alfred Chester Beatty1
- Alice Millard1
- Alpha Loretta Owens1
- Alpirsbach Abbey1
- Amelia Daubeney1
- Andrea de Sancto Gemino1
- Andreas Justus Cennis1
- André Rooryck1
- Anne of Brittany1
- Antony Bek1
- Arthur Brölemann1
- Arthur Lee Loeb1
- Arthur M. Elliz1
- Arthur Thomas Bannister1
- Ashton Rollins Sanborn1