National Museum of Nuclear Science & History
L. J. Ritter worked for the Roane-Anderson Company.
John Marstellar served in the 603rd Air Engineering Squadron.
John Mench was assigned to the Special Engineer Detachment at Los Alamos where he worked as a pattern maker, creating wooden casts for metal work at the site’s foundry.
In the 1944 Hanford Phone Book, he is listed under R. C. Theil. In the 1945 Hanford Phone Book, he is listed under R.
