Eugene S. Grennan

Flight Engineer on the Straight FlushHiroshima Mission

Tinian IslandWendover, UT

509th Composite GroupHiroshima MissionManhattan Project VeteranMilitary Veteran

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

Grace C. Wallace

Oak Ridge, TN

Grace Wallace worked for the United States Engineer District Office.

C. H. Pearson

K-25 Plant

C. H. Pearson worked for the Kellex Corporation at the K-25 Plant.

Verne A. McCormick

Hanford, WA

Charles C. Campbell

Los Alamos, NM