Former Owner
- George Chalmers1
- George Dawson Coleman1
- George Dunn5
- George Herbert, 4th Earl of Powis1
- George Sidney Hellman1
- George Templeton Strong1
- George Venables-Vernon, 5th Baron Vernon1
- Giacomo Eugenio De Levis1
- Giacomo Soranzo3
- Giannalisa Feltrinelli1
- Giovanni Perissinotti1
- Giovanni Saibanti1
- Giulio Saibante1
- Giuseppe Antonio Saccardini1
- Giuseppe Martini5
- Gordon Adamson1
- Guglielmo Libri Carucci dalla Sommaja2
- Guilielmus van Hamme2
- H. Bayle1
- H. P. Kraus (firm)2