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

John R. Raper

X-10 Graphite Reactor

John Raper worked for Clinton Laboratories at the X-10 Reactor.

R. L. Lysher

Hanford, WA

Michael F. Griffin

Tinian Island

Michael F. Griffin served in the 1027th Air Material Squadron.

W. H. McWhirter

Oak Ridge, TN

W. H. McWhirter worked for the J.A. Jones Construction Company.