Karla R. Taylor, Arete Publishing Company, Inc., Princeton, New Jersey, to Carlotta Corpron. April 6, 1981.

Karen Tsujimoto, San Francisco Museum of Art, San Francisco, California, to Carlotta Corpron. December 4, 1974.

Thomas T. Solley, Indiana University Art Museum, Bloomington, Indiana, to Carlotta Corpron. April 17, 1979.

Frank B. Gill, Curator of Ornithology, The Academy of Natural Sciences, Philadelphia, Pennsylvania, to Eliot Porter. September 14, 1982.

Frank B. Gill, Chairman, Department of Ornithology, Visual Resources for Ornithology, Philadelphia, Pennsylvania, to Eliot Porter. September 8, 1987.

Robert M. Peck, Fellow of the Academy, The Academy of Natural Sciences, Philadelphia, Pennsylvania, to Eliot Porter. October 14, 1983.

Alice H. Whelan, Librarian, St. John's College, Santa Fe, New Mexico, to Eliot Porter. November 23, 1971.

Fred C. Seely, Vice President, Shedd-Brown, Inc., Minneapolis, Minnesota, to Eliot Porter. April 25, 1973.

Ken [Lieberman], Ken Lieberman Laboraties, Inc., New York, New York, to Eliot Porter. September 26, 1985.

Helen [Brush] to Eliot Porter. August 1, 1988.

David R. Brower, President, Friends of the Earth, San Francisco, California, to Friends of the Publishing Program. April 5, 1973.

Nell Dorr to John Van Nostrand Dorr. n.d.

Nell Dorr, Franconia, New Hampshire, to John Van Nostrand Dorr. n.d.

Shedrich Williames to Nell Dorr. n.d.

Nell Dorr to John Van Nostrand Dorr. 1946.

Nell Koons, New York, New York, to John Van Nostrand Dorr. n.d.

Nell Dorr, Franconia, New Hampshire, to John Van Nostrand Dorr. n.d.

Alan Du Bois, Museum of Fine Arts, St. Petersburg, Florida, to Carlotta Corpron. September 24, 1974.

Carlotta Corpron, Denton, Texas, to Cusie, Marcuse Pfeifer Gallery-Photography. March 1, 1977.

Cusie Pfeifer, Marcuse Pfeifer Gallery Photography, New York City, New York, to Carlotta Corpron. September 15, 1979.