Chester J. Ramatowski

Marjorie Shopp

Melvin A. Miller

Melvin A. Miller was a draftsman at the University of Chicago Met Lab. In 1946, he sketched two famous drawings of Chicago Pile-1 based on the descriptions of scientists who were present when it went critical.

Theodore R. Boinski

Theodore Boinski (1920-2008) was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.

J. T. Holloway

J. T. Holloway worked for the United States Engineer District Office.