National Museum of Nuclear Science & History
L. J. Ritter worked for the Roane-Anderson Company.
Stanislaw Ulam (1909-1984) was a Polish-American mathematician. Ulam was born in 1909 in Lvov, Austria-Hungary (present-day Ukraine).
Roy D. Kuhner served in the 1st Ordnance Squadron.
Carl Hodson served in the 603rd Air Engineering Squadron.
Holeman worked at the 300 Area at Hanford during the Manhattan Project.