Laura Gilpin, Santa Fe, New Mexico, to Alfred R. Orsini, The Dexter Press. May 8, 1953.

Milo E. Smith, Chicago Bridge and Iron Company, Chicago, Illinois, to H. D. Walters. January 15, 1951.

Brenda Putnam, Firenze, Italia, to Laura Gilpin. September 12, 1927.

Lillian B. Morrison, Colorado Springs, Colorado, to Laura Gilpin. September 14, 1927.

Miller Simon, U. S. Camera Publishing Corporation, New York, New York, to Laura Gilpin. February 18, 1941.

Tom Maloney, U. S. Camera Publishing Corporation, New York, New York, to Laura Gilpin. March 24, 1942.

Laura Gilpin, Colorado Springs, Colorado, to M. E. Bradley, U. S. Camera Publishing Co. June 19, 1942.

Laura Gilpin, Colorado Springs, Colorado, to Tom Maloney, U.S. Camera Publishing Corp. February 9, 1942.

John Macrae III, Editor-in-Chief, Holt, Rinehart and Winston, New York, New York, to Eliot Porter. August 4, 1983.

Journal I List and pages 83 to 463. n.d.

"The Physical Geology of the Grand Canon District" by Clarence E. Dutton. 1882.

Eliot Porter, Director, Santa Fe, New Mexico, to Jack G. Roof, Editor, Lone Star Sierran. February 27, 1969.

G. Gervaise Davis III, Walker, Schroeder, & Davis, Monterey, California, to Edgar Wayburn, President, The Sierra Club. February 6, 1969.

Lloyd P. Fadrique, Secretary, New Mexico Council on Photography, Santa Fe, New Mexico, to Eliot Porter. February 11, 1987.

Adele Auchincloss, Secretary, Chairman's Council, Natural Resources Defense Council, New York, New York, to Eliot Porter. December 23, 1986.

John Adams, Executive Director, Natural Resources Defense Council, Inc., New York, New York, to Eliot Porter. October 29, 1984.

Adrian W. DeWind, Chairman, Natural Resources Defense Council, New York, New York, to Eliot Porter. April 2, 1986.

Adele Auchincloss, Secretary to the Chairman's Council, Natural Resources Defense Council, New York, New York, to Eliot Porter. November 11, 1986.

Meeting Minutes by Lloyd P. Fadrique, Secretary, New Mexico Council on Photography, Santa Fe, New Mexico. December 7, 1987.

Kate Carlson, Amherst, Massachusetts, to Eliot Porter. November 26, 1979.