Jim Lewis, Hollywood, California, to Eliot Porter. September 1, 1968.

Joel Orent, Chestnut Hill, Massachusetts, to Eliot Porter. October 31, 1978.

Franz Leidler, Cowles, New Mexico, to Eliot Porter. September 6, 1972.

Elizabeth Morrison, Midlothian, Scotland, to Eliot Porter. April 4, 1979.

W. M. Harlow, State University College of Forestry at Syracuse University, Syracuse, New York, to Mr. Line. March 17, 1967.

Joel Orent, Jerusalem, Israel, to Eliot Porter. May 30, 1974.

Letter from Charles Newton, Editor, California Institute of Technology, Pasadena, California. January 24, 1949.

Ken, Santa Cruz, California, to Eliot Porter. September 30, 1977.

NSF Rep Antarctica Peninsula, to NSF Polar Whasington, D.C. January, 1975.

Ann Guilfoyle, Picture Editor, Audubon, New York, New York, to Eliot Porter. April 30, 1969.

Eliot Porter, to Phillip Berry, President, Sierra Club. May 19, 1969.

Contract between Eliot Porter and C. P. Dutton & Co., Inc. December 30, 1969.

Contract between Eliot Porter and C. P. Dutton & Co. Inc. July 27, 1973.

Signed contract between Eliot Porter and National Audubon Society. May 12, 1975.

Marion Edey, Chairman, League of Conservation Voters, Washington, D.C., to Supporter. November 17, 1972.

Eliot Porter, to Department of Photography, The Art Institute of Chicago. November 21, 1976.

Loan Agreement/Contract between Eliot Porter and the University of Colorado. November 30, 1976.

Ian Ballantine, Ballantine Books, Inc., New York, New York, to David Brower, Sierra Club. September 25, 1967.

[Eliot Porter], to Tim Stoner, Berkey K&L Custom Services. August 11, 1980.

[Eliot Porter] to Ken Lieberman, Ken Lieberman Laboratories Inc. October 21, 1985.