Robert M. Sprague

Julia E. Freeman

Julia Elaine Freeman graduated high school early at age 16. She was also the only African American woman in her high school graduating class of 1940.

Ed Hammel

Los Alamos, NM

Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.

Frank Gerhart

Y-12 Plant

Frank Gerhart worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Sherman D. Kaplan

Chicago, IL

Sherman D. Kaplan was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Design EngineerK-25 Plant

Oak Ridge, TN

EngineerManhattan Project VeteranMilitary VeteranSpecial Engineer Detachment

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