National Museum of Nuclear Science & History
H. J. Mack worked for the Edenfield Electric Company.
Linton W. Melton served in the 320th Troop Carrier Squadron.
Wheadon worked at the 300 Area at Hanford during the Manhattan Project.
George Placzek was a Czech physicist. He was born in Brno, Moravia, which was then part of Austria-Hungary but today is in the Czech Republic.