James P. Bryan

Robert W. Hobart

Robert Hobart worked for the United States Engineer District Office.

Jim E. Carter

M. M. MacDonald

M. M. MacDonald worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Velva Irwin

Velva Irwin worked as a Calutron girl at the Y-12 Plant at Oak Ridge, TN. She was only 16 when she began working on the Manhattan Project.