- Gildersleeve, Robert A. Catskill Mountain House Trail Guide: In the Footsteps of the Hudson River School. Hensonville, N.Y.: Black Dome Press, 2005.
- Gillaspie, Caroline. "The Influence on and Application of Thomas Cole's Color Theories," paper presented at "Cedar Grove Intern Symposium," 13 September 2008.
- Griffin, Randall C. "The Untrammeled Vision: Thomas Cole and the Dream of the Artist," Art Journal 52, no. 2 (Summer 1993): 66-73.
- Greene County Historical Society: