J.V. Quinn

Joseph LaRocco

Joseph LaRocco was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Jasper B. Jeffries

Jasper Brown Jeffries was an American physicist. Jeffries was born in Winston-Salem, North Carolina, on April 15, 1912.

Arthur O. Carlson

H. R. Chapman

H. R. Chapman worked for the H. K. Ferguson Company.