National Museum of Nuclear Science & History
H. M. Bryant worked for the Comstock-Bryant Electric Company.
Hans von Halban (1908-1964) was an Austrian born French physicist. He finished his studies in 1934. He joined nuclear physicist Niels Bohr in Copenhagen, where he and Otto Frisch discovered that heavy water had very little neutron absorption compared to normal water.
Frank Smith worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Howard Harmon worked for the Tennessee Eastman Corporation at the Y-12 Plant.