Former Owner
- 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
- Gustav Wolf1
- Habert du Berry d'Artois family1
- Harold Drayton1
- Harrison Wright1
- Harry C. Koenig1
- Heinrich Eisemann1