John P. Wittemore

M. G. Davis

M. G. Davis worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Leonard E. Edelman

R. O. Ashworth

R. O. worked for Clinton Laboratories at the X-10 Reactor.

Jean M. O’Leary

Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.