Harriet Calvin Latimer, Armand Bayou Nature Center, Houston, Texas, to Scott and Stuart Gentling. November 17, 1987.

The International Fund For Concerned Photography Inc. Information. n.d.

List of Bird Plates. n.d.

Jonathan Porter, Taipei, Taiwan, to Eliot and Aline Porter. February 18, 1968.

Joel Orent to Eliot Porter. n.d.

"Strip Mining - Coast To Coast" by Harr M. Caudill. May, 1971.

Draft of Chapter V, "Fernandina." n.d.

"20th Century Photographs from the Collection of the Bowdoin College Museum of Art." February 28-March 24, 1988.

Nancy P. Kefauver, Advisor on Fine Arts, Department of State, Washington, D. C., to Laura Gilpin. November 6, 1967.

Political Prisoners in Military Prisons, National Civil Liberties Bureau. November 21, 1918.

"Texas Tome: Hefty bird book has hefty price" by Bryce Milligan. October 11, 1986.

Elizabeth Cowles, Delhi, India, to Laura Gilpin. October 2, 1950.

"Violin and Music Lessons with Scott Gentling" by Scott Lennox. 2006.

Southwestern Historical Quarterly. January, 1989.

List of Attendees at the United States Antarctic Research Program, 1975 Orientation Session. 1975.

Eliot Porter, Sunset, Maine, to Ken. June 16, 1968.

Cottage Chrnoicles from the Van Zandt Cottage Friends, Inc. Fall, 2005.

Joel Orent to Eliot Porter. n.d.

Style Sheet for the Enduring Navaho by Laura Gilpin. Undated

Letter from Mark O. Hatfield and George S. McGovern, United States Senator, United States Senate, Washington, D.C. May, 1971.