Minnie Simon, Baltimore, Maryland, to Laura Gilpin. August 11, 1916.

Adnerb Mantup [Brenda Putnam], New York, New York, to Laura Gilpin. April 26, 1917.

Paul L. Anderson, East Orange, New Jersey, to Laura Gilpin. May 4, 1918.

Gladys McConnell Fowler, Colorado Springs, Colorado, to Laura Gilpin. May 9, 1911.

Gladys McConnell Fowler, Folsom, New Mexico, to Laura Gilpin. April 20, 1915.

Anne Simon, Carmel-by-the-Sea, California, to Laura Gilpin. August 31, 1915.

Abigail Eliot Smith, Lexington, Massachusetts, to Eliot Porter. January 31, 1968.

Gladys McConnell Fowler, Folsom, New Mexico, to Laura Gilpin. January 8, 1914.

Brenda Putnam, Rockport, Maine, to Laura Gilpin. August 23, 1916.

Lawrence Kilham, Lyme, New Hampshire, to Eliot Porter. September 6, 1977.

Francis Gilpin, Austin, Colorado, to Laura Gilpin. April 23, 1912.

Gladys McConnell Fowler, Colorado Springs, Colorado, to Laura Gilpin. August 11, 1913.

B., Missouri Air Conservation Commission, to Papa [Eliot Porter]. January 31, 1969.

Brenda Putnam, New York, New York, to Laura Gilpin. July 4, 1917.

Alfred Cohn, Secretary, The Alumni Association of the Clarence White School of Photography, New York, New York, to Laura Gilpin. April 23, 1920.

Elsie Myers, Colorado Springs, Colorado, to Laura Gilpin. [June 26, 1920].

John A. Stick, Los Angeles, California, to Laura Gilpin. April 26, 1921.

Brenda Putnam, New York, New York, to Laura Gilpin. September 18, 1916.

A. B. Titus, San Diego, California, to Laura Gilpin. March 6, 1922.

Emma Miller Gilpin, Colorado Springs, Colorado, to Laura Gilpin. December 25, [1918-1923?].