Laura Gilpin, Colorado Springs, Colorado, to Mr. Jean Eschmann, The National Library Bindery Co. of Ohio. May 8, 1940.

Laura Gilpin, Colorado Springs, Colorado, to Percy Hagerman, President, Colorado Springs Fine Arts Center. April 29, 1940.

C. A. Miller, The Stevens-Nelson Paper Company, New York, New York, to Laura Gilpin. October 2, 1940.

Warwick C. Miller, Secretary, The Stevens-Nelson Paper Company, New York, New York, to Laura Gilpin. April 3, 1940.

Edward M. Weyer, Natural History Magazine, New York, New York, to Laura Gilpin. April 25, 1940.

Clyde H. Andrews, Director, Photography Division, National Education Alliance, New York, New York, to Laura Gilpin. n.d.

Edward M. Weyer, Natural History Magazine, New York, New York, to Laura Gilpin. April 19, 1940.

Laura Gilpin, Santa Fe, New Mexico, to M. G. Lowenherz, Three Lions, Inc. Publishers. August 18, 1958.

Laura Gilpin, Santa Fe, New Mexico, to William Alex, George Braziller, Inc. October 15, 1959.

Robert F. Shostal, Shostal Agency for Color Photography, New York, New York, to Laura Gilpin. December 16, 1957.

Laura Gilpin, Santa Fe, New Mexico, to Mrs. Evan Frances, Family Circle Magazine. December 2, 1957.

Terence Y. Sieg, President, Wilderness Guide, Inc., New York, New York, to Eliot Porter. n.d.

Elizabeth Landry, Picture Research Editor, Reader's Digest, London, England, to Eliot Porter. February 21, 1969.

Robert Saudek, President, The Museum of Broadcasting, New York, New York, to Eliot Porter. May 4, 1977.

Frank B. Gill, Chairman, Visual Resources for Ornithology, Philadelphia, Pennsylvania, to Eliot Porter. August 20, 1982.

Dave [David R. Brower], Friends of the Earth, San Francisco, California, to Eliot Porter. November 9, 1984.

Adele Auchincloss, Secretary, Chairman's Council, New York, New York, to Eliot Porter. November 5, 1987.

Frank McLaughlin, Principal, McLaughlin and Company, Rochester, New York, to Eliot Porter. August 23, 1988.

Rolf Fricke, Eastman Kodak Company, Rochester, New York, to Eliot Porter. June 14, 1982.

Arthur Stanley Riggs, Director, Art and Archaeology Press, Washington, D. C., to Laura Gilpin. June 21, 1926.