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

Garland E. Frye

Los Alamos, NM

Clarence R. Wayland

Tinian Island

Clarence R. Wayland served in the 320th Troop Carrier Squadron.

M. A. Obermeyer

Oak Ridge, TN

M. A. Obermeyer worked for the J.A. Jones Construction Company.

James C. Hobbs

Manhattan, NY

James C. Hobbs was an American inventor and engineer who created a key part of the valves used in the K-25 gaseous diffusion plant in Oak Ridge, TN.