National Museum of Nuclear Science & History
R. L. Plowden worked for the J.A. Jones Construction Company.
Cyril Smith (1903-1992) was a British metallurgist. He was married to the historian Alice Kimball Smith.
H. E. Donachy worked for the Edenfield Electric Company.
Frank A. Alger Sr. was a member of the 509th Composite Group at Wendover, UT and later transferred to Tinian Island to prepare for the atomic bomb mission against Japan.
Langworthy worked in the 200 East Area at Hanford during the Manhattan Project.