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National Museum of Nuclear Science & History

John C. Delmar, Jr.

SergeantTinian Island

Wendover, UT
509th Composite GroupManhattan Project VeteranMilitary Veteran
North Airfield at Tinian Island.

John C. Delmar, Jr. served in the 603rd Air Engineering Squadron. 

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Alfred R. Weeks

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Alfred R. Weeks served in the First Ordnance Squadron. 

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Cordell W. Callahan served in the 1st Ordnance Squadron.

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Sergeant Frank Karcher was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.