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.

Letter from J. R. Eaking to the National Park Service director about changes to the Grand Canyon National Park boundaries, and access to water near the Buggeln property on Desert View road.

Letter from Herbert Babbitt to Carl T. Hayden about grazing cattle in the park boundaries.

Letter (copy) from J. R. Eakin to Arthur C. Ringland about the alignment of 40 acres near the Buggeln ranch.

Letter from J. R. Eakin to Arthur C. Ringland about the alignment of 40 acres near the Buggeln ranch.

Letter from L. S. Williams to Carl Hayden about visiting Mr. Buggeln to discuss proposed park boundary changes.