Former Owner
- Frederic Sutherland Ferguson1
- Frederick Locker-Lampson1
- Frederick Perkins1
- Garibell Smythley1
- General Bookbinding Company of Chesterland, OH1
- George Dunn1
- George Robert White1
- George Spencer-Churchill, 5th Duke of Marlborough1
- George Templeton Strong1
- Gerardus de Bois1
- Gertrude Leighton1
- Giovanni Colonna1
- Giovanni Pietro Visconti1
- Grabhorn Press1
- Grolier Club1
- Guilberto Broulin1
- Guilelmus Laing1
- Guillemette Bezard1
- Habert du Berry d'Artois family1
- Harold Drayton1