Laura Gilpin, Santa Fe, New Mexico, to Joseph Trautwein, Artists and Writers Press, Inc. September 11, 1959.

Herman Craeybeckx, Antwerp, Belgium, to Nell Dorr. August 18, 1963.

Herman Craeybeckx, Antwerp, Belgium, to Nell Dorr. December 22, 1964.

George C. Murphy, Jr., Employment Supervisor, Research and Development Department, General Foods Corporation, Hoboken, New Jersey, to John V. N. Dorr. July 21, 1955.

Grace M. Mayer, The Museum of Modern Art, New York, New York, to Nell Dorr. November 19, 1963.

Elizabeth Koons Howe, Concord, New Hampshire, to Nell Dorr. July 27, 1948.

Rose Mentzel to Nell Dorr. September 24, 1975.

Rose Mentzel to Nell Dorr. n.d.

Margaretta Kuhlthau to Nell Dorr. November 24, 1958.

Margaretta and Frederick Mitchell, Mexico, to Nell Dorr. April 30, 1963.

Margaretta Mitchell to Nell Dorr. January 14, 1969.

Rose Mentzel, New York, New York, to Nell Dorr. April 8.

Margaretta Mitchell to Nell Dorr. August 21, 1974.

Margaretta Kuhlthau, Polaroid Corporation, Cambridge, Massachusetts, to Nell Dorr. September 8, 1958.

Grace M. Mayer, New York, New York, to Nell Dorr. January 11, 1965.

Edith M. Johnson, Postmaster, United States Post Office, Des Moines, Iowa, to Arthur Brackman, President, Free Lance Photographers Guild, Inc. May 21, 1954.

John Macrae, III, E. P. Dutton & Co., Inc., New York, New York, to Eliot Porter. May 21, 1974.

Janet A. Loranger, Editor in Chief, Charles Scribner's Sons Publishers, New York, New York, to Theodore Wilentz, Publications Manager, Sierra Club. January 7, 1969.

Andre Bruwer, The University of Arizona, Tucson, Arizona, to Eliot Porter. December 29, 1973.

Sheafe Satterthwhaite, Tenafly, New Jersey, to Eliot Porter. December 18, 1967.