Goldthwaite H. Dorr III, Curator, to Marcia Howland, The University of North Dakota. April 21, 1966.

Phil Morrison, Assistant to the Director, Norfolk Museum of Arts and Sciences, Norfolk, Virginia, to Nell Dorr, April 8, 1965.

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

Elizabeth Koons Howe, Chicago, Illinois, to Pater [John Van Nostrand Dorr]. n.d.

William A. Fegaly, New Orleans Museum of Fine Art, New Orleans, Louisiana, to Carlotta Corpron. June 14, 1974.

Cusie Pfeifer, Marcuse Pfeifer Gallery Photography, New York City, New York, to Carlotta Corpron. January 7, 1977.

Joan H. Young, Golden Triangle Communications, Denton, Texas, to Carlotta Corpron. March 26, 1981.

Margarite D'Anna, Secretary to Perry Miller Adato, WNET/13, New York, New York, to Eliot Porter. November 16, 1976.

Sheila Turner, Editor, Images of Man, Scholastic Magazines Inc., New York, New York, to Eliot Porter. November 3, 1972.

Adele Auchincloss, Secretary, Chairman's Council, Natural Resources Defense Council, New York, New York, to Eliot Porter. June 8, 1988.

John Macrae III, Editor-in-Chief, Holt, Rinehart and Winston, New York, New York, to Eliot Porter. July 11, 1983.

Willard W. Beatty, Department of the Interior Bureau of Indian Affairs, Washington, D. C., to Helen M. Post. June 7, 1940.

Paul L. Fickinger, Department of the Interior Bureau of Indian Affairs, Washington, D. C., to Helen M. Post. October 10, 1940.

[?], Department of the Interior, Washington, D. C., to Helen M. Post. July 23, 1940.

Nell Dorr 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.

Shipment orders of Motion Picture Prints, The Golden Key and The Singing Earth. May 21, 1957.

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

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