Letter from John Page to Carl Hayden concerning the future of property ownership within the proposed boundaries of the national park.

Letter from John Page to Carl T. Hayden regarding a conversation conducted at Hotel Adams in Phoenix. Page states his concern over the national park bill in reference to his mining company.

Letter from John H. Page to Carl T. Hayden regarding his company's rights to build a railway if they choose to.

Letter from the Acting Director of the National Park to Carl Hayden assuring him that Superintendent Crosby had removed the dynamite nearby Grand Canyon Village and placed it in a safe location on the South Rim.

Letter from Arno B. Cammerer to Carl Hayden supporting Superintendent Crosby's stance that there is no need to remove the dynamite stored near Grand Canyon Village.

Letter from Arno B. Cammerer to Carl Hayden reiterating the safe nature of the dynamite storage.

Letter from Arno B. Cammerer to Carl Hayden informing him of the removal of the dynamite from Grand Canyon Village to a point near Rowe Well.

Letter from Arno B. Cammerer to Carl Hayden on the investigation by Superintendent Crosby regarding the TNT stored in the Grand Canyon.

Letter from Arno B. Cammerer to Carl Hayden regarding the storage of dynamite in Shoski Canyon. Written in red pencil at the top, "My dear Jesse, For your(?) further information, Jack."

Letter from Arno B. Cammerer to Carl Hayden on building a Union Chapel in the Grand Canyon.