Letter from W. W. Bass to Carl Hayden requesting the boundaries of the park be reconsidered as a large portion of the land is suitable for mining and farming.
Letter from John Page to Carl Hayden concerning the future of property ownership within the proposed boundaries of the national park.
Letter from W. W. Bass to Carl Hayden concerning the mining of asbestos in the Grand Canyon.
Letter from W. W. Bass to Carl Hayden urging him to visit the Grand Canyon in order to see what effect the National Park bill would have on the farmers and miners of the Grand Canyon. Bass urges Hayden to "correct a threatening evil" and the monopoly such a proposal would give to the Santa Fe Railway line, includes newspaper clipping.
Letter from The Camp Fire Club of America urging Carl Hayden to introduce a bill that would grant National Park status to the Grand Canyon.
Black and white print of three women, one man and one child at a Hermit Creek Camp cabin. Handwritten annotation, "Annie Goodenough took the picture. Will Shope holding babe Mary on porch."
Letter from George Otis Smith, U.S. Geological Survey to Carl Hayden regarding asbestos mining prospects in the Grand Canyon.