Former Owner
- Abbazia di San Domenico1
- Abbey of Santa Giustina1
- Abraham Pelunis1
- Acquired before February 1992 and probably in library for many decades.1
- Albert C. Baugh1
- Albert Parker, 3rd Earl of Morley1
- Alberto Govi1
- Alfred Higgins1
- Alfred John Horwood1
- Alfred Stites1
- Alice M. Taylor1
- Alice Millard1
- Allan Marquand1
- Alpha Loretta Owens1
- Alphonse Labitte1
- Ambroise Firmin Didot1
- American Art Association1
- Anderson Galleries1
- Andrea Matteo Acquaviva1
- Andrea Tessier1