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.

Color postcard titled, "H-4452 The Watchtower at Desert View, Grand Canyon National Park, Arizona." Circa 1930-1939.

Color postcard titled, "East From (Hopi) Rowe Point."

Color postcard, 3 inch x 5 inch, titled, "5424." The Grand Canyon of Arizona. Circa 1910.

Color postcard titled, "6326 Grand Canyon of Arizona, From Jacob's Ladder."

Color postcard titled, "8797 El Tovar Grand Canyon of Arizona." Handwritten annotation, "Dear Miss Oakley, I expect to leave here Tuesday A.M. Have had the time of my life. Lovingly, M."