National Museum of Nuclear Science & History
H. R. Kroegar worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John A. Simpson Jr. (1916-2000) was a distinguished American nuclear physicist and astrophysicist. Simpson was born on November 3, 1916 in Portland, Oregon.
Attended Purdue University.
O’Connor worked in the 300 Area at Hanford during the Manhattan Project.
Robert J. Westmark served in the First Ordnance Squadron.
