Jego żona Fanny zmarła w roku 1972.
Wybrane publikacje The Channeled Scabland of the Columbia Plateau. W: Journal of Geology. tom 31, s. 617–649 (1923). The Spokane flood beyond the Channeled Scablands. W: Journal of Geology. tom 33, s. 97–115 i 236–259 (1925). Vadose and phreatic features of limestone caverns. W: Journal of Geology. tom 50, nr. 6, Teil II, S. 675–811 (1942). The Caves of Missouri. Missouri Geological Survey and Water Resources, s. 490 (1956).
Przypisy
Bibliografia Bretz, J Harlen (1923). „The Channeled Scabland of the Columbia Plateau”. Journal of Geology 31: 617–649. Bretz, J Harlen (1925). „The Spokane flood beyond the Channeled Scablands”. Journal of Geology 33: 97–115, 236–259. Bretz, J Harlen (1942). „Vadose and phreatic features of limestone caverns”. Journal of Geology 50 (6, Part II): 675–811. Bretz, J Harlen (1956). The Caves of Missouri. Missouri Geological Survey and Water Resources. s. 490. Bretz, J Harlen (1961). The Caves of Illinois. Illinois State Geological Survey. s. 87. J Harlen Bretz, (1947), An Incomplete Genealogy of the Family of John Bretz of Fairfield Co., Ohio, with a Partial History with One Line of Descent in this Family . John Soennichsen (2008). Bretz’s Flood: The Remarkable Story of a Rebel Geologist and the World’s Greatest Flood. Sasquatch Books, Seattle.