Former Owner
- Giuseppe Franchini1
- Giusto Venier1
- Gladbach Abbey1
- Gladys Freeman1
- Gotha Research Library1
- Grabhorn Press1
- Great St. Martin Church1
- Griffon's Medieval Manuscripts, Inc.1
- Grigorij Sergeevič Stroganov1
- Grolier Club1
- Guilberto Broulin1
- Guilelmus Laing1
- Guillemette Bezard1
- Guillemme Broullin1
- Gundulf1
- Gustav Wolf1
- H. Charles Barnston1
- H. Richard Archer1
- H., C1
- Habert du Berry d'Artois family1