Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Calvin B. Popwell

Ground Crew on Big StinkTinian Island

Wendover, UT
509th Composite GroupManhattan Project VeteranMilitary Veteran
The Big Stink

Calvin B. Popwell served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Big Stink, and he and his crew were later reassigned to Luke the Spook.

Related Profiles

T. M. Brown

T-Plant/200 Areas

Brown worked at the 200 East Area at Hanford during the Manhattan Project. 

John L. Kuranz

Chicago, IL

John L. Kuranz (1921-1995) was an American engineer, physicist, and inventor.  During the Manhattan Project, Kuranz was a member of the Special Engineer Detachment at the University of Chicago Met Lab.

Charlie C. Stallings

Los Alamos, NM

Charlie Stallings was a staff member at Los Alamos during the Manhattan Project.

Leo A. Ohlinger

Chicago, IL

Leo A. Ohlinger was a senior engineer at the University of Chicago Met Lab. Ohlinger was also Section Chief of P-IX, Engineering Physics.