National Museum of Nuclear Science & History
J. J. De Groot worked for the J.A. Jones Construction Company.
Leo Seren (1918-2002) was an American physicist. Seren (in photo, first row standing, far right) was born on May 9, 1918.
J. J. Murphy worked for the Union Carbide & Carbon Corporation.
R. Niekirk worked for the Roane-Anderson Company.
