National Museum of Nuclear Science & History
Chellis worked for Stone and Webster Engineering Corporation.
Tommie Richardson was a staff worker at Los Alamos during the Manhattan Project.
Edward A. Ryan Jr. served in the First Ordnance Squadron.
W. S. Porter worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Phillip Fineman was a research associate in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
