Former Owner
- Gaetano Schiepati1
- Garegnano Charterhouse1
- General Bookbinding Company of Chesterland, OH1
- George C. Thomas1
- George Dawson Coleman1
- George M. Millard1
- George N. Olcott1
- George Spencer, 2nd Earl Spencer1
- George Watson-Taylor1
- Gerard of Csanád1
- Gertrude Lueneburg Carrier1
- Giacinto della Torre1
- Giacomo Eugenio De Levis1
- Giacomo Manzoni1
- Giacomo Soranzo1
- Giampietro Campana1
- Giannalisa Feltrinelli1
- Gilhofer & Ranschburg, Vienna1
- Gilhofer & Ranschburg. Lucerne, Suisse1
- Giovan Battista Corbinello1