Wilmot Hyde Bradley

At Yale, he first studied engineering and then chemistry, but switched his major to geology in his senior year and graduated with a Bachelor of Philosophy degree in 1920.

[6] The summer after he graduated, Bradley's first U.S. Geological Survey assignment was serving as a field assistant to Frank C. Calkins in the Wasatch Mountains of Utah.

It was during this time that he first became interested in the Green River Formation, and he volunteered himself as a full-time employee of the Survey; in 1922 he began studying the oil shale potential of the region.

[5] As a result of his work on the Green River Formation, in 1941, John Joseph Fahey named a mineral bradleyite in Bradley's honor.

[9] He continued writing about results from research on the Green River Formation and Mud Lake, Marion County, Florida, which he had studied earlier in his career.