National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Waldemar Nielsen (1917-2005) worked on the postwar surveys of Hiroshima and Nagasaki in Japan. Nielsen was born in Greensburg, Pennsylvania.
Mary E. Parrish was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Wendell B. Lathrop served as a master sergeant in the 393rd Bombardment Squadron.
