Lilian and Elsa to Karl and Etchie. July 6, 1958.

Elsa to Karl and Etchie. October 18, 1958.

Lilian and Elsa to Karl and Etchie. March 24, 1959

Karl Struss to Mother. February 27, 1918.

Karl Struss to Mother. March 2, 1918.

Karl Struss to Mother. March 7, 1918.

Contract with B. P. Schulberg. July 13, 1922.

Karl Struss to Mother. March 13, 1918.

Elise Cleary, Youngstown, Ohio, to Eliot Porter. June 23, 1979.

Byron H. Dudley, Eugene, Oregon, to Eliot Porter. October 4, 1977.

R. Austing, Harrison, Ohio, to Eliot Porter. January 22, 1964.

Clifford J. Rudden, Assistant Treasurer, to Publications Committee. August 29, 1972.

Karen Peterson, Berkeley, California, to Eliot Porter. December 18, 1969.

Edgar Wayburn, President, Sierra Club, San Francisco, California, to Eliot Porter. n.d.

New Mexico Chapter of the Nature Conservancy Board of Trustees Meeting Minutes. April 28, 1984.

Los Angeles Article Clippings. December 19, 1984.

Mrs. James W. Brennan, Santa Fe, New Mexico, to Eliot Porter. n.d.

Eliot Porter to Donald L. Stephens, Jr. November 26, 1979.

Charles Hackett, Guelph, Ontario, to Eliot Porter. January 14, 1974.

Bruce M. Kilgore, Managing Editor, Sierra Club, to Jim Coran, Accounting Department, Sierra Club. September 21, 1962.