Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Roger S. Warner, Jr.

Chief of the Fat Boy Assembly TeamTinian Island

Wendover, UT
Manhattan Project VeteranProject Alberta

Roger S. Warner, Jr. was a civilian scientist who worked as part of Project Alberta, the team that transported and assembled all the components of the two atomic bombs before the August 1945 bombings of Hiroshima and Nagasaki. Warner was the chief of the assembly group that put together the Fat Man plutonium bomb. That bomb was dropped on the Japanese city of Nagasaki on August 9, 1945.

Related Profiles

Thomas E. Tuggle

Tinian Island

Thomas E. Tuggle served in the 1027th Air Material Squadron.

James P. Tilley

Tinian Island

James P. Tilley served in the 393rd Bombardment Squadron.

J. C. Conn

Los Alamos, NM

J. F. Chapman

Y-12 Plant

J. F. Chapman worked for the Tennessee Eastman Corporation at the Y-12 Plant.