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- All Subjects: Arizona. Legislature
- All Subjects: Heard, Dwight Bancroft, 1869-1929
- All Subjects: Nature conservation -- Political aspects -- United States -- History -- 20th century.
- All Subjects: United States. Congress. House. Select Committee on Irrigation and Reclamation of Arid Lands
- Creators: Hayden, Carl T.
Letter of introduction for Dwight B. Heard on the arrival of National Park Service Director Stephen T. Mather to Phoenix. Mather's visit includes trips to Roosevelt Dam and Tumacácori.
Letter from Carl Hayden to C. H. Akers on the opposition to the Grand Canyon bill from A. A. Johns, J. W. Sullivan, Jesse Hoyce, T. E. Cureton, and Hugh Campbell. Hayden mentions his failure to contact the governor before the present special session, but expresses hope of the legislature passing a memorial on the subject.
Letter from Carl Hayden to L. H. McEllherren detailing the funeral of Hon. M. P. Kinkaid, Chairman of the Committee on Irrigation of Arid Lands as well as Hayden's travel plans for the summer.
An audio recording of the award ceremony featuring remarks from Senator Hayden, US Secretary of Agriculture Orville Freeman and US Secretary of the Interior Stewart Udall.