Letter from J. E. Gavin to Louis C. Cramton regarding the Bright Angel Trail controversy, including newspaper clipping.

Rebuttal to the editoral published in the Coconino Sun attacking Ralph Cameron.

Travel statistics for Grand Canyon National Park.

Editoral attacking Senator Ralph Cameron for attempting to buy Bright Angel Trail.

Letter from Fred Harvey to Senator Carl Hayden on the diary of Padre Francisco Garcés and his entry on July 4, 1776.

Letter from Fred Harvey to Senator Carl Hayden on the diary of Padre Francisco Garcés and the lack of knowledge of U.S. citizens regarding the Hopi people.

Letter to Carl Hayden, possibly from Jack E. Gavin, detailing a trip to Flagstaff and Winslow to gauge his political popularity. Several mentions of his opponent Senator Ralph T. Cameron.

Amendments to the bill establishing the Grand Canyon a National Monument. Circa 1908.

Letter from C. H. Gensler, Havasupai Agency to Carl Hayden regarding boundary lines.

Letter from Carl T. Hayden to C. H. Gensler, Havasupai Indian Reservation, regarding Hualapai and Cataract Canyons geography.