Helena Calloway

Laboratory Assistant; Chemistry DivisionChicago, IL

Manhattan Project VeteranProject Worker/Staff

Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Related Profiles

R. R. Peatfield

Y-12 Plant

R. R. Peatfield worked for the Tennessee Eastman Corporation at the Y-12 Plant.

F. I. Irwin

Y-12 Plant

F. I. Irwin worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Kay Manley, Canadian-born, came to the United States in 1933 to study. She and her husband John Manley were at the Manhattan District in Chicago, when her husband was personally called by Leo Szilard and asked to move from the Met Lab to Los Alamos.