Spencer B. Beebe, Vice President, Director, The Nature Conservancy International Program, Portland, Oregon, to Eliot Porter. June 11, 1984.

David K. Haspel, Account Supervisor, Tracy-Locke BBDO, Dallas, Texas, to Eliot Porter. June 11, 1982.

Spencer B. Beebe, The Nature Conservancy International Program, to Charles J. Hedlund, Chairman, International Advisory Committee. October 10, 1984.

Muriel Clarke, Time-Life Books, New York, New York, to Eliot Porter. November 26, 1973.

Ann Guilfoyle, Senior Editor, Audubon, New York, New York, to Eliot Porter. April 23, 1975.

Kenneth D. Morrison, Editor, Audubon Magazine, New York, New York, to Eliot Porter. April 8, 1954.

Anne D. Kobor, Illustrations Editor, National Geographic Society, Washington, D.C., to Eliot Porter. September 23, 1975.

Anne D. Kobor, Illustrations Editor, National Geographic Society, Washington, D.C., to Eliot Porter. September 16, 1975.

R. T. Bond, Dodd, Mead, & Company Incorporated, New York, New York, to Eliot Porter. August 14, 1953.

Joseph J. Amiel, Joshua Tree Producations, Inc., New York, New York, to Eliot Porter. September 2, 1971.

David H. McAlpin, Princeton, New Jersey, to William Conway, General Manager, New York Zoological Society. October 17, 1979.

Robert Flieder, Chief Engineer, American Speedlight Corporation, New York, New York, to Eliot Porter. April 30, 1963.

Ansel Adams, President, Friends of Photography, Carmel, California, to Eliot Porter. February 15, 1969.

Harold K. Hochschild, President, The Adirondack Historical Association, Blue Mountain Lake, New York, to Eliot Porter. September 2, 1965.

Henry A. Millon, American Academy of Arts and Sciences, Boston, Massachusetts, to Eliot Porter. October 30, 1980.

Letter from Beverly Rowen, Executive Associate, American Academy of Arts and Sciences, Stanford, California. April 11, 1973.

Franklin I. Jordan, American Photographic Publishing Co., Boston, Massachusetts, to Eliot Porter. January 29, 1945.

Sandy Schwartz, University of Arizona, Tucson, Arizona, to Carlotta Corpron. September 24, 1979.

H. J. Swinney, Director, The Adirondack Museum, Blue Mountain Lake, New York, to Eliot Porter. September 26, 1967.

Harry L. Parker, President, American Speedlight Corporation, New York, New York, to Eliot Porter. September 24, 1957.