* Cooper, Michael L. Dust to Eat: Drought and Depression in the 1930’s. New York: Clarion Books, 2004.
Discussion of Depression Era mid-west. Useful in context for first part of film.
* Daniel, Cletus E. Bitter Harvest: A History of California Farmworkers, 1870-1941. London: Cornell University Press, 1981.
Contains discussion of working conditions of Depression era California farmworks. Useful for context of later half of the film when characters travel to California.
* Nugent, Frank S. “Hollywood’s Favorite Rebel.” Saturday Evening Post 222, no. 4 (July 23, 1949): 25-98.
Discussion of John Ford and his directing style. Discusses directorial decisions he made while creating Grapes of Wrath.
* Sanderson, Jim. “American Romanticism in John Ford’s The Grapes of Wrath: Horizontalness, Darkness, Christ, and F.D.R.” Literature Film Quarterly 17, no. 4 (December 1989): 231.
Critical cinematic examination of John Ford’s The Grapes of Wrath .
* Smith, John R. “Making the Cut: Documentary Work in John Ford’s The Grapes of Wrath.” Literature Film Quarterly 35, no. 4 (2007): 323-329.
Another critical examination of Ford’s directorial choices in The Grapes of Wrath
* Stein, Walter J. California and the Dust Bowl Migration. Westport, CT: Greenwood Press, 1973.
Describes movement of people from Dust Bowl to California during the Depression.