Joseph H. Heartberg

Security GuardChicago, IL

Manhattan Project Veteran

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

Related Profiles

J. W. Hensley

Oak Ridge, TN

Hensley worked for the Stone and Webster Engineering Corporation.

Morris J. Pearson

Tinian Island

Morris J. Pearson served in the 1st Ordnance Squadron.

James T. Holland

Y-12 Plant

James T. Holland worked for the Tennessee Eastman Corporation from June 1945 – September 1945 as a Beta machine mechanic in the Y-12 Plant, working in building 9204-3.

G. A. Keller

Hanford, WA