Richard Dow, Editor, New England Museum of Natural History, Boston, Massachusetts, to Eliot Porter. October 18, 1939.

Olof S. Sandburg, Assistant to the President, Nife Incorporated, Long Island, New York, to Eliot Porter. January 3, 1955.

John Geryak, Art Director, Kallir, Philips, Ross, Inc., New York, New York, to Eliot Porter. June 25, 1969.

Richard Dow, Editor, New England Museum of Natural History, Boston, Massachusetts, to Eliot Porter. November 3, 1939.

Richard Dow, Editor, New England Museum of Natural History, Boston, Massachusetts, to Eliot Porter. October 5, 1939.

Alfreda Murck, Registrar, The Art Museum, Princeton University, Princeton, New Jersey, to Eliot Porter. January 5, 1971.

James Kirk Merrick, Executive Director, Philadelphia Art Alliance, Philadelphia, Pennsylvania, to Eliot Porter. January 22, 1968.

R. Terry Walker, The Commonwealth of Massachusetts Department of Natural Resources, Boston, Massachusetts, to Eliot Porter. June 19, 1970.

Sara Maxwell, Producer, Scholastic Magazines Inc., New York, New York, to Eliot Porter. August 7, 1974.

W. E. Schmidt, Manager, Miseastern Service, Singer, Rochester, New York, to Eliot Porter. May 25, 1971.

David Gebhard, Director, Roswell Museum and Art Center, Roswell, New Mexico, to Eliot Porter. June 17, 1957.

Fred C. Seely, Vice President, Shedd-Brown, Inc., Minneapolis, Minnesota, to Eliot Porter. April 3, 1973.

Mrs. Dale T. Johnson, The Art Museum, Princeton University, Princeton, New Jersey, to Eliot Porter. May 1, 1970.

James J. Storrow, Jr. , Publisher, The Nation, New York, New York, to Eliot Porter. November 18, 1971.

Tim Hill, Editor in Chief, New York Graphic Society, Boston, Massachusetts, to Eliot Porter. October 19, 1976.

Patrick J. Kelleher, The Art Museum, Princeton University, Princeton, New Jersey, to Eliot Porter. March 26, 1970.

Wendell Ott, Director, Roswell Museum and Art Center, Roswell, New Mexico, to Eliot Porter. October 11, 1974.

Art Editor, Vanity Fair, New York, New York, To Clara E. Sipprell. October 11, 1922.

A. M. Blitzer, Purchasing Agent, Willoughbys, New York, New York, to John V. N. Dorr. December 16, 1955.

E. R. Weidlein, Mellon Institute of Industrial Research, Pittsburgh, Pennsylvania, to John V. N. Dorr. October 11, 1955.