Raymond E. Krause

Clarence F. Hiskey

Clarence Francis Hiskey (1912-1998) was an American chemist and Soviet spy. He worked at Columbia University and the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.

L. P. Buma

E. J. Sekeres

E. J. Sekeres served in the 509th Headquarters.

A. H. Angerman

Angerman worked at the 300 Area at Hanford during the Manhattan Project.