J Harlen Bretz
American geologist
J Harlen Bretz was an American geologist, best known for his research that led to the acceptance of the Missoula Floods and for his work on caves. Wikipedia
Born: September 2, 1882, Saranac, MI
Died: February 3, 1981 (age 98 years), Homewood, IL
Education: The University of Chicago and Albion College
Academic advisor: Rollin D. Salisbury
Awards: Penrose Medal
Nationality: American