Tom Maloney, Lens League, New York, New York, to Laura Gilpin. June 13, 1941.

Willard D. Morgan, General Editor, Photography Division, National Educational Alliance, New York, New York, to Laura Gilpin. May 4, 1942.

Jean Eschmann, The National Library Bindery Company of Ohio, East Cleveland, Ohio, to Laura Gilpin. August 13, 1943.

Cortland N. Cool, Haney and Haney, Attorneys at Law, Colorado Springs, Colorado, to Laura Gilpin. March 26, 1943.

Laura Gilpin, Santa Fe, New Mexico, to George L. Findley, Yingling Chevrolet Motor Company. October 30, 1945.

C. P. Mechling, Trust Officer, The First National Bank, Colorado Springs, Colorado, to Laura Gilpin. November 26, 1943.

Laura Gilpin, Colorado Springs, Colorado, to Mr. Spud Johnson. January 21, 1941.

Willard D. Morgan, General Editor Photography Division, National Educational Alliance, New York, New York, to Laura Gilpin. October 28, 1941.

Rowena Meyers, The Mission Shop, Taos, New Mexico, to Gilpin Publishing Co. May 10, 1941.

Marjorie Philips, Production Manager, The Victoria Company, St. Louis, Missouri, to Laura Gilpin. March 3, 1943.

Tom Maloney, U. S. Camera Publishing Corporation, New York, New York, to Laura Gilpin. February 23, 1942.

Laura Gilpin, Colorado Springs, Colorado, to C. F. Brown, La Placita. November 17, 1942.

Eliot Porter to John C. Willey, Editor-in-chief, William Morrow & Company, Inc. May 14, 1976.

Russell W. Peterson, National Audubon Society, New York, New York, to Eliot Porter. June 17, 1982.

Ken Lieberman, Ken Lieberman Laboraties, Inc., New York, New York, to Eliot Porter. September 12, 1985.

Summer, page 317 and 63. n.d.

Summer List and pages 7 to 332. n.d.

Eliot Porter, Great Spruce Head Island, Maine, to C. William Simmens, Secretary, Sierra Club. July 22, 1968.

Eliot Porter, Great Spruce Head Island, Maine, to Phillip Berry, President, Sierra Club. June 10, 1969.

J. David Ortiz, President, Pojoaque Valley Water Users Association, to Member of the Pojoaque Valley Water Users Association. May 28, 1985.