Alexander M. Tuholsky

C. R. Holl

Holl worked for Stone and Webster Engineering Corporation.

John Mench

John Mench was assigned to the Special Engineer Detachment at Los Alamos where he worked as a pattern maker, creating wooden casts for metal work at the site’s foundry.

J. L. Gastkill

B Reactor/100 Area

Gastkill worked at the 100-D Area at Hanford during the Manhattan Project.

Roy S. Bonsib

Chicago, IL

Roy Bonsib was a research associte at the Metallurgical Laboratory in Chicago during the Manhattan Project.

EngineerK-25 Plant

Oak Ridge, TN

EngineerManhattan Project VeteranMilitary VeteranSpecial Engineer Detachment

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C. R. Holl

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