- Frank Hall Knowlton
- John Muir
- William R. Keefer
- Harold J. Brodrick
- Merrill D. Beal
-
- Geological Survey
- James Richardson
- and Pacific Railroad Company St. Paul Milwaukee Chicago
- Union Pacific Railroad Company
- Hiram Martin Chittenden
- Carter H. Harrison
- Alma White
- Herbert Quick
- Orange Perry Barnes
-
-
John L. Stoddard'ın Konferansları, Cilt 10 (10'in 10'u) Güney California; Colorado Nehri Büyük Kanyonu; Yellowstone Ulusal Parkı
John L. Stoddard