Creator
- Gosack, Benjamin1
- Grant, James A. (Geologist)1
- Graves, Richard1
- Green, J.A.1
- Griffin, W. L. (Geologist)1
- Grindhem, Martin Johansen1
- Gundersen, J.N.1
- H.R. Page & Co1
- Hamery, George T.1
- Hansen, Gretchen JA1
- Harmon, E. L. (Surveyor)1
- Harris, K.L1
- Harrison, John J1
- Hart, Charles H.1
- Hassan, A. F.1
- Hatch & Co.1
- Helm, Charles J.1
- Herb, William1
- Higbee, Edward F.1
- Hirsch, Candice N1