National Museum of Nuclear Science & History
Stanislaw Ulam (1909-1984) was a Polish-American mathematician. Ulam was born in 1909 in Lvov, Austria-Hungary (present-day Ukraine).
Theodore “Ted” Welton (1918-2010) was an American physicist. Welton was born in Saratoga Springs, New York.
Paul McKim worked for the United States Engineer District Office.