National Museum of Nuclear Science & History
Grace Hardin worked for the J.A. Jones Construction Company.
Jay Wechsler enlisted in the Army in 1943 and spent several months at Oak Ridge working as an Army construction engineer, In the winter of 1943, he was suddenly transferred to Los Alamos, where he began working directly with Otto Frisch.
Theo Bottomly worked for the Roane-Anderson Company.
Barbara Brennan Joanides arrived in Los Alamos in May of 1945 with her husband who worked on the project.
