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- All Subjects: South Kaibab Trail (Ariz.)
- All Subjects: Flora and fauna
- All Subjects: Gavin, John Edward, 1884-1959
- All Subjects: Postcards
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
Letter from J. E. Gavin to Louis C. Cramton regarding the Bright Angel Trail controversy, including newspaper clipping.
Press release on the increase in wildlife in the Grand Canyon including mountain sheep, deer, and the Abert Squirrel.
Letter from the Acting Director of the National Park to Carl Hayden assuring him that Superintendent Crosby had removed the dynamite nearby Grand Canyon Village and placed it in a safe location on the South Rim.
Letter from Jesse L. Boyce to Jack in which he refers to W. W. Crosby as a "damn carpetbagger" and his frustration at Crosby making him out to be a "liar."
Letter from Jesse L. Boyce to Jack regarding the storage of dynamite in Shoski Canyon.
Letter from J. E. Gavin on behalf of Carl Hayden writing in regards to the insurance claims filed with the National Park.
Black and white, silver gelatin print with some silvering. Circa 1930.
Black and white, silver gelatin print with some silvering. Circa 1930.
Black and white, silver gelatin print with some silvering. Circa 1930.