Robert H. Rutford, Head, Office of Polar Programs, Washington, D.C., to Eliot Porter. August 25, 1975.

Loan Agreement Between Eliot Porter and Indiana University Art Museum. July 12, 1977.

Timothy Seldes, to Eliot Porter. September 20, 1978.

John Macrae, III, Vice President and Editor-in-Chief, E. P. Dutton & Co., Inc., New York, New York, to Eliot Porter. January 10, 1968.

Paul Steiner, Chanticleer Press, Inc., New York, New York, to Eliot Porter. December 28, 1973.

John Macrae, III, President, E. P. Dutton & Co., Inc., New York, New York, to Eliot Porter. November 23, 1977.

Eliot Porter, Santa Fe, New Mexico, to Charles E. Tuttle Co., Inc. October 21, 1968.

R. E. Latimore, Forest Supervisor, United States Department of Agriculture Forest Service, Santa Fe, New Mexico, to Eliot Porter. October 17, 1962.

Diarmuid [Russell], Russell & Volkening, Inc., New York, New York, to Eliot Porter. May 4, 1972.

Beaumont Newhall, Curator of Photography, The Museum of Modern Art, New York, New York, to Eliot Porter. November 1, 1945.

Carol Stewart, General Manager, Meisel Photochrome Corporation, Dallas, Texas, to Eliot Porter. March 26, 1980.

Grace M. Mayer, Department of Photography, The Museum of Modern Art, New York, New York, to Eliot Porter. January 5, 1959.

"Carson - Santa Fe Spruce Budworm Control Project Plan" by Donald A. Pierce, Project Leader. June, 1962.

Diarmuid [Russell], Russell & Volkening, Inc., New York, New York, to Eliot Porter. May 18, 1970.

Diarmuid [Russell], Russell & Volkening, Inc., New York, New York, to Eliot Porter. March 25, 1969.

Diarmuid Russell, Russell & Volkening, Inc., New York, New York, to Eliot Porter. September 20, 1968.

Diarmuid Russell, Russell & Volkening, Inc., New York, New York, to Eliot Porter. July 30, 1968.

Diarmuid Russell, Russell & Volkening, Inc., New York, New York, to Eliot Porter. July 26, 1968.

Diarmuid [Russell], Russell & Volkening, Inc., New York, New York, to Eliot Porter. March 14, 1972.

Diarmuid [Russell], Russell & Volkening, Inc., New York, New York, to Eliot Porter. November 10, 1971.