Creator
- Grasselli Chemical Company1
- Great Britain. Medical Research Committee1
- Green, Arthur G.1
- Greenish, Henry G. (Henry George), 1855-19331
- Greensfelder, N. S. (Nelson Sutro), 1891-1
- Groves, Leslie R., 1896-19701
- Gulf Research & Development Co.1
- Guttmann, Oscar, 1855-19101
- H. A. Metz & Co.1
- H. Grevel & Co.1
- H. K. Mulford Company1
- H.A. Metz & Co1
- Hachette (Firm)1
- Hadley, C. H.1
- Hallock, Grace T. (Grace Taber), 1893-1
- Hancock, William J.1
- Hardin, Clifford M. (Clifford Morris), 1915-20101
- Hare, H.A. (Hobart Armory), 1862-19311
- Harrison Bros. & Co.1
- Hartleben, A.1