Edward W. Powell

Abraham L. Longfield

Abraham L. Longfield was a Procurement and Property Officer for the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

R. Haywood

R. Haywood worked for the Roane-Anderson Company.

John H. Blackwell

Frank P. Erichsen

Major Frank P. Erichsen worked at 100-F Area at Hanford during the Manhattan Project. One of the leading U.