Richard J. Kapitz

Robert E. Johnson

Robert E. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Violet B. Longtin

Violet Longtin worked for the United States Engineer District Office.

Erwin W. Thayer

Lyle E. Seeman

General Lyle Edward “Skip” Seeman was a United States Army Corps of Engineers Officer. He was also a Manhattan Engineering District Special Assistant to General Groves at Los Alamos On May 3, 1945 Col Seeman was appointed by General Leslie Groves to be his Corps of Engineers liaison at Los Alamos.