- Gilbeart H. Collings and P.H. Montgomery 1
- Gilbert Thompson, Chief Geographer in charge1
- Gilbert, Bradford L. (Bradford Lee), 1853-19111
- Gilbert, S. A. (Samuel A.)1
- Goddard, John1
- Graham, Joseph, 1759-1836 (Cartographer) 1
- Gravelot, Hubert Francois, 1699-1773(delin.)1
- Gray, Frank A.1
- Gray, Frank A. (Cartographer)1
- Great Southern Freight and Passenger Line, New York1
- Greater Bishopville Chamber of Commerce1
- Greater Columbia Chamber of Commerce (S.C.)1
- Greene, William S.1
- Greenville Chamber of Commerce1
- Greyhound Corporation1
- Greyhound Lines, Inc.1
- Guiccardini, Luigi1
- Gulf Oil Corporation1
- Gulf Refining Company1
- Guyot, A. (Arnold), 1807-18841