Frost, Dick. The King Ranch Papers: An Unauthorized and Irreverent History of the World's Largest Landholders: The Kleberg Family. Chicago: Aquarius Rising Press, 1985.
Lea, Tom. Captain King of Texas: The man who made the King Ranch. Boston: Atlantic Monthly Press, 1957.
Monday, Jane Clements and Frances Brannen Vick, eds. Letters to Alice: Birth of the Kleberg-King Ranch Dynasty. College Station: Texas A&M University Press, 2012.
Rudolph Kleberg Family Papers, 1829-1966. Dolph Briscoe Center for American History, The University of Texas at Austin. Finding aid.