Laura Gilpin, Colorado Springs, Colorado, to Mr. Walter Frese, Hastings House Publishers. August 2, 1941.

Jonathan Porter, Taipei, Taiwan, to Eliot and Aline Porter. March 24, 1968.

Edith Franklin Wyatt, Chicago, Illinois, to Eliot Porter. January 1, 1939.

Arizona Wilderness Resource Areas. 1976.

Stuart Gentling, to Ted. December 18, 2001.

Draft of "The Canyon That Was." n.d.

Laura Gilpin, Colorado Springs, Colorado, to Mr. M. B. Bennett, The Bennett Transportation Company. December 13, 1946.

Draft 1 Continued, Pages 41i to 41l. n.d.

J. P. Myers, Director, Visual Resources for Ornithology, Philadelphia, Pennsylvania, to Eliot Porter. August 3, 1982.

Seth Ansell, Aptos, California, to Eliot Porter. December 11, 1979.

"Meteors As the Cause of Our Glacier Periods" by James F. Porter. n.d.

"Nature Photography." n.d.

Verne Chaney, President, Dooley Foundation, New York, New York, to Terry Morgart. October 7, 1986.

Manuscript text. n.d.

"Spiders." n.d.

Donald J. Morrow, Educational Specialist (A-V), United States Department of Interior, Brigham City, Utah, to Laura Gilpin. February 4, 1961.

Elodie Courter, Director, The Museum of Modern Art, New York, New York, to Eliot Porter. June 6, 1946.

Laura Gilpin, Santa Fe, New Mexico, to Parker Wilson, Museum of International Folk Art Foundation. February 18, 1963.

Barbara Strelke, American Studies Program, University of New Mexico, Albuquerque, New Mexico, to Laura Gilpin. February 20, 1973.

Natalie Owings, Photography Department, Geo-Logic, Inc., Santa Fe, New Mexico, to Laura Gilpin. October 10, 1975.