Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Eugene S. Grennan

Flight Engineer on the Straight FlushHiroshima Mission

Tinian IslandWendover, UT
509th Composite GroupHiroshima MissionManhattan Project VeteranMilitary Veteran
The Straight Flush

Eugene S. Grennan served as a 2nd lieutenant in the 509th Composite Group. He was the flight engineer on the Straight Flush during the Hiroshima mission.

Related Profiles

Gayle Braden

Chicago, IL

Gayle Braden was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Chester Morterud

Los Alamos, NM

Harriett Peterson

Los Alamos, NM

Harriet Peterson was a nurse at Los Alamos during the Manhattan Project.

Hugh P. McCoy

Hanford, WA