National Museum of Nuclear Science & History
Warren Sheehan joined Mound Laboratory in April 1956. He spent the first half of his career in health physics, or radiation safety, where he developed a new methodology for determining the amount of plutonium in urine.
Jack Aeby graduated Mound City (MO) High School in 1941. He went to the University of Nebraska, studying chemistry until the spring of 1943 when he received his draft notice.
Hubert P. Yockey is an American physicist who studied under J. Robert Oppenheimer at the University of California, Berkeley and worked with him during the Manhattan Project.