National Museum of Nuclear Science & History
H. L. Roland worked for the Midwest Piping and Supply Company.
Attended Brooklyn Polytechnic Institute.
Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.
Kelleher worked for Stone and Webster Engineering Corporation.
F. E. Clark worked for the Tennessee Eastman Corporation at the Y-12 Plant.