Robert W. Kupp

J. M. Murphy

Murphy worked for Stone and Webster Engineering Corporation.

Philipp H. Klein

Philipp Klein was a part-time switchboard operator in the SAM Lab while studying chemical engineering at Columbia University.

Robert F. Christy

Robert F. Christy (1916-2012) was a Canadian-American theoretical physicist Christy’s doctoral advisor at the University of California, Berkeley was Robert Oppenheimer, but Christy’s initial involvement with the Manhattan Project came at the Metallurgical Lab at the University of Chicago.

C. F. Gilmour