Laura Gilpin, Colorado Springs, Colorado, to Mr. A. B. Russell. February 29, 1932.

Elizabeth L. Higgins, New York, New York, to Nell Dorr. May 24, 1957.

Margaretta Mitchell, Berkeley, California, to Chris. February 14, 1979.

Tony Sanna, Palo Alto, California, to Eliot Porter. August 29, 1976.

Eliot Porter to The Editor, The New Mexican. October 4, 1962.

Laura Gilpin, Colorado Springs, Colorado, to Anne Evans. September 7, 1934.

Laura Gilpin, Colorado Springs, Colorado, to Frederick A. Delano. November 28, 1932.

Laura Gilpin, Colorado Springs, Colorado, to Dr. Morley. February 3, 1946.

Henwar Rodakiewicz to Eliot Porter. October 19, 1971.

Alfred Englaender, Laenderpress, Dusseldorf, Germany, to Laura Gilpin. January 3, 1956.

To The Friends of Clarence White. n.d.

Joel Orent to Eliot Porter. n.d.

A. Lovell Elliott, A. Lovell Elliott Autographs, Barnstable, Massachusetts, to Scott Gentling. January 20, 2007.

List of birds. n.d.

Grace M. Mayer, Special Assistant to the Director, The Museum of Modern Art, New York, New York, to Eliot Porter. August 3, 1959.

Monroe Wheeler, Director of Exhibitions and Publications, The Museum of Modern Art, New York, New York, to John V. N. Dorr. December 21, 1955.

Interior of Old Block House, St Peters Mission, Dearborn River

Laura Gilpin, Colorado Springs, Colorado, to Evelyn F. Lamorey. September 6, 1935.

Joseph M. Bing, Chairman, Print Committee, Camera Club, New York, New York, New York, to Laura Gilpin. January 15, 1932.

Elyga Wenger, South Gate, California, to Karl Struss. July 21, 1960.