National Museum of Nuclear Science & History
Betty Tellefson was a staff worker at Los Alamos during the Manhattan Project.
Edward M. Costello served as a captain in the 393rd Bombardment Squadron. He was the aircraft commander regularly assigned to the Laggin’ Dragon.
Gus Essig began working on the Manhattan Project in May, 1946 in Dayton, Ohio. Essig was selected to work in the highly classified initiator program and spent several months at Los Alamos learning how to design and construct initiators.
