National Museum of Nuclear Science & History
George Cowan joined the Manhattan Project in 1942 at the Met Lab as a chemist for Enrico Fermi’s group, and also worked for Columbia University.
Roger Rohrbacher was born in St. Paul, Minnesota on March 11, 1920. He graduated from Macalester College in 1942 with a degree in chemistry and physics.
S. J. Helfman worked for the J.A. Jones Construction Company.
LaVerna C. McKenzie was a laboratory technician in the Health Division at the University of Chicago Met Lab.
