Letter from Carl Hayden to Robert Fechner on building a Union Chapel in the Grand Canyon.

Letter from Robert Fechner to Carl Hayden on building a Union Chapel in the Grand Canyon.

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

Letter from Carl Hayden to Walter Mitchell on building a Union Chapel in the Grand Canyon.

Letter from Walter Mitchell to Carl Hayden on building a Union Chapel in the Grand Canyon.

Letter from attorney Thomas J. Croff to Carl Hayden informing him of the Atchison, Topeka, and Santa Fe railroad company's ownership of land inside the proposed national park boundaries.

Letter from Carl Hayden to C. T. Woolfolk thanking him for his support on the proposed bill. Hayden writes that the bill will not be introduced into the current session of Congress as any new legislation would be impossible to pass, but he is optimistic over the bill's future.

Letter from Ralph H. Cameron to Carl Hayden requesting a delay on the introduction of the Grand Canyon bill until he can meet with himself and Senator Ashurst in Washington.

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."

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