Frederick Mitchell, The Scrimshaw Press, San Francisco, California, to Nell Dorr. December 3, 1975.

James M. Baker, Edinboro State College, Edinboro, Pennsylvania, to Laura Gilpin. 1976.

Laura Gilpin, Santa Fe, New Mexico, to Nancy Newhall. April 28, 1957.

Barbara Morgan, New York, New York, to Laura Gilpin. October 31, 1940.

Nell Dorr to A. H. S. Craeybeckx, Gevaert Production N. V.. November 27, 1955.

Laura Greenberg, Photo Researcher, Handbook of North American Indians, Smithsonian Institute, Washington, D. C., to Laura Gilpin. March 23, 1977.

David H. McAlpin, The University Club, New York, New York, to Eliot Porter. December 22, 1960.

Ann Duncan, Boulder, Colorado, to Eliot Porter. December 14, 1976.

Laura Gilpin, Santa Fe, New Mexico, to Willa Percival. September 12, 1956.

Hayward Cirker, Dover Publications, Inc., New York, New York, to Helen M. Post. April 22, 1975.

Robert W. Young, Tribal Operations Officer, Bureau of Indian Affairs, Gallup, New Mexico, to Laura Gilpin. February 7, 1964.

Laura Gilpin, Colorado Springs, Colorado, to Anne Evans. November 5, 1934.

Laura Gilpin, Santa Fe, New Mexico, to Margaret Bailey Speer. October 30, 1954.

Henwar Rodakiewicz, New York, New York, to Eliot Porter. October 18, 1972.

Taylor Clark, Baton Rouge, Louisiana, to Stuart Gentling. August 16, 1982.

Merle S. Ewell, Stereo Club of Southern California, Los Angeles, California, to Karl Struss. August 4, 1960.

Laura Gilpin, Colorado Springs, Colorado, to Meyric R. Rogers, City Art Museumof St. Louis. October 31, 1936.

Laura Gilpin [Dictated to Sina Brush-Morales], Santa Fe, New Mexico, to Susan Spiritus. March 8, 1977.

Agreement between Eliot Porter and Sierra Club. November 8, 1968.

Thyra D. Wallace, Treasurer, Mesa Verde Library Fund, Mesa Verde National Park, Colorado, to Laura Gilpin. July 24, 1939.