National Museum of Nuclear Science & History
H. L. Roland worked for the Midwest Piping and Supply Company.
Marcia W. Wooster was a lab technician in the health division at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Davis worked for Stone and Webster Engineering Corporation.
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
