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

Dexter L. Wolfe

Oak Ridge, TN

Dexter Wolfe was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.

Seth Coy

Tinian Island

Seth Coy served in the 320th Troop Carrier Squadron.

M. R. Nason

Oak Ridge, TN

M. R. Nason worked for the Union Carbide & Carbon Corporation.

Nellie N. Rushing

Sgt. Nellie Rushing served in the Women’s Army Corps at Los Alamos during the Manhattan Project.