Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

G. R. Jessen

Project StaffB Reactor/100 Area

Hanford, WA
Manhattan Project VeteranProject Worker/Staff
The first large-scale nuclear reactor in history, the B-Reactor, in Hanford, Washington

Jessen worked at the 100-F Area at Hanford during the Manhattan Project. 

Related Profiles

James Delaney

Los Alamos, NM

Florence Bunch Worthington

Y-12 Plant

Worthington worked in the chemical department of the Y-12 plant at Oak Ridge during the Manhattan Project.

Estelle Hays

Oak Ridge, TN

Hays worked in the United States Engineer District Office

Richard Emanatian

Hanford, WA

Richard Emanatian was with the military police detachment at Los Alamos during the war. He maintained secrecy through the rest of his life, and his family only found about his involvement long after his death.