Theodore Wilentz, Publications Manager, New York, New York, to Eliot Porter. March 10, 1970.

Elliot S. Barker, Wildlife and Conservation Association, Inc., Santa Fe, New Mexico, to Eliot Porter. April 12, 1962.

Marshall Townsend, Director, The University of Arizona Press, Tucson, Arizona, to Eliot Porter. April 14, 1972.

Les Line, Editor, Audubon, New York, New York, to Eliot Porter. August 15, 1974.

James G. Deane, Executive Director, The Wilderness Society, Washington, D.C., to Eliot Porter. November 1, 1974.

Les Line, Editor, Audubon, New York, New York, to Eliot Porter. October 14, 1974.

Aileen Maniates, Pictures Research, Scott, Foresman and Company, Glenview, Illinois, to Eliot Porter. April 25, 1979.

A. F. Betzel, Office of Polar Programs, Washington, D.C., to Mrs. Porter. January 22, 1975.

Bill Weeks, Director, The University of New Mexico, Albuquerque, New Mexico, to Eliot Porter. March 29, 1973.

Statement of Intent between Eliot Porter and Robert Smith with the Brooks Institute Alumni Association. February 7, 1977.

Robert L. Nienkamp, Meisel Photochrome Corporation, Dallas, Texas, to Eliot Porter. July 10, 1974.

Price Lewis, Jr., Manager, Polar Operations, Washington, D.C., to Eliot Porter. April 26, 1976.

Neil C. Stillinger, Attorney at Law, Santa Fe, New Mexico, to Eliot Porter. October 18, 1988.

Joseph C. French Jr., Photoworld, Bronxville, New York, to Eliot Porter. October 26, 1988.

Frank N. McLaughlin, Principal, McLaughlin and Company, Rochester, New York, to Eliot Porter. July 20, 1988.

John May, Editorial Director, Greenpeace Books, Sussex, England, to Eliot Porter. May 7, 1987.

Frank Aoi, Consultant, Corrales, New Mexico, to Eliot Porter. January 25, 1988.

Frank B. Gill, The Academy of Natural Sciences, Philadelphia, Pennsylvania, to Eliot Porter. November 17, 1981.

Robert E. L. Strider, President, Colby College, Waterville, Maine, to Eliot Porter. November 8, 1969.

Rich [Clarkson], Director of Photography, National Geographic Magazine, Washington, D.C., to Eliot Porter. June 3, 1986.