Nell Dorr, West Branch, Westport, Connecticut, to John Van Nostrand Dorr. n.d.

Nell Dorr, West Branch, Westport, Connecticut, to John Van Nostrand Dorr. n.d.

Nell Dorr to John Van Nostrand Dorr. n.d.

Nell Dorr to John Van Nostrand Dorr. n.d.

Nell Dorr, Clewiston, Florida, to John Van Nostrand Dorr. n.d.

Nell Koons, New York, New York, to John Van Nostrand Dorr. n.d.

Nell Dorr to John Van Nostrand Dorr. n.d.

John McKee, Center for Resource Studies, Brunswick, Maine, to Eliot Porter. February 16, 1967.

Enrique Sodi, Puertos Libres Mexicanos, Cuernavaca, Mexico, to Eliot Porter. January 30, 1968.

Kaid Benfield, Natural Resources Defense Council, Inc., Washington, D.C., to NRDC Trustees and Staff. August 8, 1985.

Patricia L. Ashton [for Eliot Porter], Santa Fe, New Mexico, to Linda B. Meyerriecks, Picture Editor, National Geographic Society. March 6, 1984.

Laura Gilpin, Santa Fe, New Mexico, to Raymond Carlson, Arizona Highways. April 3, 1952.

H. A. Belt, The Fred Harvey Company, Kansas City, Missouri, to Laura Gilpin. July 24, [1928?].

Tom Maloney, U. S. Camera Publishing Corporation, New York, New York, to Laura Gilpin. July 30, 1941.

Journal XIV-19 Bird Notes and Other Observations. May 8, 1938-January 23, 1954.

Herman Craeybeckx, Antwerp, Belgium, to Nell Dorr. December 16, 1963.

John Dorr to Nell Dorr. July 17, [1948].

Marvin Liebman, Membership Director, Thomas Alva Edison Foundation, Inc. Youth Program, New York, New York, to John V. N. Dorr. April 8, 1955.

Kit Spence, New York, New York, to Nell Dorr. August 20.

Ruby Reid Thompson, West Bergholt, England, to Nell Dorr. June 5, 1977.