National Museum of Nuclear Science & History
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Gerry Pawlicki was an American physicist. Pawlicki was born in 1921. He received a B.S. in physics at De Paul University in Chicago, and soon after was hired to work on the Manhattan Project at the Chicago Met Lab as a member of the instruments division.
