Letter from W. W. Bass to Carl Hayden on the proposed park boundaries which he deems 'outrageous' and the effect such a bill could have on Hayden's reelection chances.

Letter from C. D. Dawson to Carl Hayden urging him to consider the rights of miners and farmers when drawing up the boundaries for the proposed park.

Letter from L. J. O'Reilly to Carl Hayden on behalf of William Randolph Hearst regarding his land ownership within the proposed Grand Canyon boundaries.

Letter from Carl Hayden to John H. Page asking his opinion on the proposed national park bill. W.R. Hearst's name and property rights are mentioned.

Letter from C. H. Gensler expressing concern on behalf of the Havasupai Tribe regarding the proposed park boundaries.

Letter from Joseph J. Cotter to Carl Hayden providing a rebuttal to W. W. Bass' objections to the Grand Canyon National Park Bill.

Letter from Carl T. Hayden to J. B. Rickel concerning proposed changes to Grand Canyon National Park boundaries.

Letter from Carl T. Hayden to J. R. Eakin regarding changes to the Grand Canyon National Park boundaries and the purchase of lands from William Randolph Hearst.