Letter from R.P Gilliland to Carl Hayden regarding the sale of Bright Angel Trail (Ariz.) and construction of the President's Highway from Maine, AZ, to the Grand Canyon.

Letter from Henry Graves to Carl T. Hayden regarding the land ownership and grazing rights of the Havasupai.

Letter from M. J. Riordan to Carl Hayden expressing his opposition to the federal government's takeover of Bright Angel Trail.

Letter from Thomas Henry Cureton to Carl Hayden expressing a lack of interest in establishing the Grand Canyon as a national park.

Letter from Michael J. Reardon to Carl T. Hayden, in agreement with Ralph Cameron, asserting that Bright Angel Trail should not be sold from Coconino County to the United States.