Edmund H. Longfellow

A. P. Stebbins

A. P. Stebbins worked for the J.A. Jones Construction Company.

Duillio DiCostanzo

Duillio DiCostanzo worked at the shop in the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Bert C. Messenger

J. W. Dishner

J. W. Dishner worked for the Tennessee Eastman Corporation at the Y-12 Plant.