National Museum of Nuclear Science & History
H. VanDerHorn served in the 390th Air Service Group.
Chemist Orville Hill joined the Met Lab at the University of Chicago in May of 1942, three months after it was created.
Leo Seren (1918-2002) was an American physicist. Seren (in photo, first row standing, far right) was born on May 9, 1918.
Leonard Hardy served in the 603rd Air Engineering Squadron.