National Museum of Nuclear Science & History
Ralph Nelson was a staff worker at Los Alamos during the Manhattan Project.
Robert Ellingson arrived in Oak Ridge in June 1943. Shortly after Ellingson arrived, however, he was informed by his employer, Tennessee Eastman, that they already had too many chemists and chemical engineers.
Julian N. Bernacchi had three main assignments in the Manhattan Project. The most significant was as the Security Officer of Dr.
Leinberger worked in the 200 W Area at Hanford during the Manhattan Project.
McCampbell worked for Stone and Webster Engineering Corporation.
