Former Owner
- Alvise Bochini1
- Ambroise Firmin Didot6
- American Type Founders Company. Typographic Library and Museum2
- Andrea S.1
- Andreas Justus Cennis1
- Andrew Fountaine1
- Andrés Ordoñez1
- Angela Burdett-Coutts, 1st Baroness Burdett-Coutts1
- Anna Maria Louisa Peachey1
- Anne Baker Lewis55
- Antoine Lagnier1
- Antoine de Buz1
- Antoine de Court1
- Antoni Jerzy Apponyi1
- Antonio Marino de Caboga1
- Antonius Mensing1
- Artemesia Piccolomini1
- Arthur H. Lea3
- Arthur Liddell, 5th Baron Ravensworth1
- Ashridge Priory1