Daniel H. Carson, Conservation Chairman, Ann Arbor, Michigan, to Eliot Porter. December 12, 1967.

Second Draft of "Porter Retrospective: Chapter Two." February 11, 1987.

Opal Harber, Research assistant, Western History Department, Denver Public Library, Denver, Colorado, to Laura Gilpin. December 6, 1972.

Roger Perry, Director, Charles Darwin Foudnation for the Galapagos Isles, Isla Santa Cruz, Galapagos, to Eliot Porter. March 6, 1968.

Gladys Carter, Editor in Chief, Educational Audo Visual Inc., Pleasantville, New York, to Nell Dorr, January 12, 1972.

Esther to Laura Gilpin. 1955.

Clarence John Laughlin, New Orleans, Louisiana, to "All My Friends (including my Dealers)." January 20 1978.

T. A. Willard, Beverly Hills, California, to Laura Gilpin. December 8, 1932.

Laura Gilpin, Santa Fe, New Mexico, to Mrs. John P. Morgan. September 15, 1949.

Patricia Paylore, Program Chairman, Southwestern Library Association, Austin, Texas, to Laura Gilpin. August 23, 1954.

Minor White, George Eastman House, Rochester, New York, to Laura Gilpin. April 1, 1957.

B., Jefferson City, Missouri, to Pa [Eliot Porter] and Aline. February 27, 1969.

Laura Gilpin to Charles Duell, Charles A. Pearce, Duell, Sloan & Pearce. July 10, 1953.

Frank H. Wardlaw, Director, University of Texas Press, Austin, Texas, to Laura Gilpin. November 2, 1971.

Charles Etheridge Minton, State Supervisor, Statewide Writers’ Project, Work Projects Administration, Santa Fe, New Mexico, to Laura Gilpin. December 7, 1939.

Agreement between Eliot Porter and the Sierra Club. February 4, 1975.

Fairfield [Porter], Amherst, Massachusetts, to Aline and Eliot Porter. December 7.

John V. N. Dorr to The Honorable Herbert Hoover. August 4, 1954.

Letter to Walkter Rumsey Marvin, Executive Director, Martha Kinney Cooper Ohioana Library Association. March 17, 1955.

Arthur Luce Klein, President, Spoken Arts, New Rochelle, New York, to Nell Dorr. March 14, 1980.