John R. Raper

Sanford N. McDonnell

Sanford McDonnell was a mechanical engineer with the Special Engineering Detachment at Los Alamos from April 1944 to April 1946.

M. G. Mastin

M. G. Mastin worked for the Fercleve Corporation.

Bob Giffen

T. E. McCartney

T. E. McCartney worked for the J.A. Jones Construction Company.