Dave [David Brower], President, Friends of the Earth Foundation, San Francisco, California, to Eliot Porter. April 5, 1973.

B. M. Rastall, Vice-President, The Colorado Association, Colorado, to Laura Gilpin. July 23, 1929.

"The Protection of Freedom" address by Herbert Hoover. August 10, 1954.

Tad Nichols to Eliot Porter. December 8.

Texas Citizen Action Fact Sheet. June 2, 1993.

Edwin Dancy, Houston, Texas, to Laura Gilpin. September 9, 1939.

Ira Wright Martin, President, Pictorial Photographers of America, New York, New York, to Laura Gilpin. April 22, 1932.

A. Lovell Elliott [Lovell], Barnstable, Massachusetts, to Stuart Gentling. June, 2006.

Sheafe Satterthwhaite, Tenafly, New Jersey, to Eliot Porter. December 18, 1967.

Corrected list of Academy Fellows in the West. August 14, 1972.

Fort Worth Museum of Science and History Gentling Donation Spread Sheet. March 25, 1988.

Cyndi Hughes, Director, Texas Book Festival, Austin, Texas, to Scott and Stuart Gentling. July 18, 2001.

Fort Worth Museum of Science and History Gentling Donation Spread Sheet. January 9, 1989.

Dorothy L. Barto, Executive Secretary, Photographic Society of America, Philadelphia, Pennsylvania, to Laura Gilpin. October 2, 1946.

Jan Green Simus, Fort Worth Opera, Fort Worth, Texas, to Stuart Gentling. n.d.

Ira Martin, Pictorial Photographers of America, Rye, New York, to Laura Gilpin. April 9, 1935.

"The Devil and the Skirt: An iconographic inquiry into the pre-Hispanic nature of the tzitzimime" by Cecelia F. Klein. 2000.

The September 12 Meeting and the 1965 Outlook Minutes. September 4-5, 1964.

Report 1, Americans for the Coast. May 8, 1980.

Marla, Modern Art Museum of Fort Worth, Fort Worth, Texas, to Stuart Gentling. 1995.