Martin J. Costello

E. J. O’Brien

O'Brien worked for Stone and Webster Engineering Corporation.

E. C. Morgan

Mary Alice Nachtrieb

Mary Alice Nachtrieb was a chemist who worked at Los Alamos during the Manhattan Project. Her speciality was in plutonium chemitsry.

J. F. Caldwell

Caldwell worked at the 200 West Area at Hanford during the Manhattan Project.