National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Joanna Brumfiel was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
H. L. McKinnon worked for the Tulip Town Super Market.
John Francis Moynahan was a Public Relations Officer for the Manhattan Engineering District, and later worked as an international public-relations consultant.
