J. Hauser, Sterling-Howard Corporation, New York, New York, to Laura Gilpin. February 6, 1952.

Ellen J. Landis, Curator of Art, The Albuquerque Museum of Art, History and Science, Albuquerque, New Mexico, to Eliot and Aline Porter. April 9, 1986.

Theodore Wilentz, Publications Manager, Sierra Club, New York, New York, to Diarmund Russell, Russell & Volkening, Inc.. January 17, 1969.

C. A. Jurgensen, Vice President of Mfg., De Laval Steam Turbine Company, Trenton, New Jersey, to John V. N. Dorr. June 3, 1955.

Grace M. Mayer, The Museum of Modern Art, New York, New York, to Nell Dorr. December 7, 1962.

John Howard Griffin to Nell Dorr. May 1, 1968.

Grace M. Mayer, The Museum of Modern Art, New York, New York, to Nell Dorr. June 1, 1963.

Margaretta Mitchell to Nell Dorr. n.d.

Barbara Tenery to Nell Dorr. n.d.

Barbara Tenery to Nell Dorr. n.d.

F. L. Partlo, President, South Dakota School of Mines and Technology, Rapid City, South Dakota, to John V. N. Dorr. January 29, 1955.

John V. N. Dorr, Chairman, New York, New York, to Mrs. Remedias P. Yasay, Cagayan de Oro City Central School. December 3, 1956.

John Macrae, III, Editor in Chief, E. P. Dutton & Co., Inc., New York, New York, to Eliot Porter. October 21, 1968.

James F. Mathias, Associate Secretary, John Simon Guggenheim Memorial Foundation, New York, New York, to Eliot Porter. September 11, 1959.

Robert S. Arbib, Jr., Editor, American Birds, National Audubon Society, New York, New York, to Eliot Porter. June 25, 1971.

Laura Gilpin, Santa Fe, New Mexico, to Frederic M. Rea. February 25, 1959.

K. Ross Toole, Director, Museum of New Mexico, Santa Fe, New Mexico, to Laura Gilpin. September 29, 1961.

Alfred H. Barr, Director, The Museum of Modern Art, New York, New York, to Peppino Mangravite, Acting Art Director, Colorado Springs Fine Arts Center. March 29, 1938.

Clyde Fisher, Honorary Curator, The American Museum of Natural History, New York, New York, to Laura Gilpin. March 26, 1942.

Robert C. Cosgrove, Graphics Arts Department, Seldner & Enequist, Inc., Brooklyn, New York, to Laura Gilpin. July 13, 1936.