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

W. C. Davidson

Hanford, WA

F. M. Langworthy

B Reactor/100 Area

Langworthy worked in the 100 D Area at Hanford during the Manhattan Project.

John G. Holmes, Jr.

Tinian Island

John G. Holmes, Jr. served in the 1st Ordnance Squadron. 

Minnie F. Strickland

Oak Ridge, TN

Minnie Strickland worked for the United States Engineer District Office.