Melba Johnston

Robert H. Brown

Robert H. Brown was a chemical engineer/metallurgist. He was educated at Drexel University and Massachusetts Institute of Technology.

W. J. Carroll

Carroll worked for Stone and Webster Engineering Corporation.

Alvin Graves

Alvin Graves (1909-1965) was an American physicist. Graves was invited to join the University of Chicago Metallurgical Laboratory and in 1942 he accepted the position and became a member of the Manhattan Project.

Harold N. Petty