Clarence H. White, Clarence H. White School of Photography, New York, New York, to Laura Gilpin. May 15, 1924.

J. Walter Fewkes, Chief, Bureau of American Ethnology, Smithsonian Institution, Washington D. C., to Laura Gilpin. February 20, 1926.

Laura Gilpin, Colorado Springs, Colorado, to Ralph G. Cahn. January 19, 1926.

Deborah Ogden, Friends of the Earth, San Francisco, California, to Eliot Porter. August 11, 1983.

Ralph B. Bonwit, Director of Exhibits, Photographic Club of Baltimore City, Baltimore, Maryland, to Laura Gilpin. April 21, 1924.

Otto Simon, Washington, D. C., to Laura Gilpin. July 13, 1917.

George William Eggers, Director, The Denver Art Museum, Denver, Colorado, to Brenda Putnam. December 9, 1925.

Marie [De C?], Orr’s Island, Maine, to Francis and Laura Gilpin. August 27, 1927.

Ralph B. Bonwit, Director of Exhibits, Photographic Club of Baltimore City, Baltimore, Maryland, to Laura Gilpin. June 7, 1924.

Brenda Putnam, New York, New York, to Laura Gilpin. February 14, 1926.

Herbert Putnam, Librarian, Library of Congress, Washington, D. C., to Laura Gilpin. May 24, 1926.

Eleanor S. Smith, San Diego, California, to Laura Gilpin. October 26, 1926.

Lovey [Hall], Stony Brooks, New York, to Laura Gilpin. September 2, 1927.

Brenda Putnam, Philadelphia, Pennsylvania, to Laura Gilpin. February 8, 1924.

Antoinette Hervey, New York, New York, to Laura Gilpin. February 3, 1926.

John H. Kane, Phillips Petroleum Company, Bartlesville, Oklahoma, to Laura Gilpin. June 22, 1926.

Ralph B. Bonwit, Director of Exhibits, Photographic Club of Baltimore City, Baltimore, Maryland, to Laura Gilpin. May 20, 1924.

Laura Gilpin, Colorado Springs, Colorado, to Stella F. Simon. March 15, 1926.

R. Leslie Chrismer, Pharmacist, Pennsburg, Pennsylvania, to Eliot Porter. December 25, 1967.

Abel and Sue, Cable's Book Store, San Francisco, California, to Eliot Porter. n.d.