National Museum of Nuclear Science & History
H. L. Ray worked for the Kellex Corporation at the K-25 Plant.
S. S. Peschel worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Leo Seren (1918-2002) was an American physicist. Seren (in photo, first row standing, far right) was born on May 9, 1918.
Attended the University of California.