Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

John H. Cryder Jr.

SupervisorK-25 Plant

Oak Ridge, TN
Manhattan Project VeteranMilitary VeteranSpecial Engineer Detachment
Oak Ridge, K-25

Attended the University of Illinois.

Related Profiles

Charles E. Carpenter

Tinian Island

Charles E. Carpenter served in the 320th Troop Carrier Squadron. 

Ralph E. Lawson

Oak Ridge, TN

Ralph Lawson worked for the United States Engineer District Office.

Peggy Stuart

Y-12 Plant

Peggy Stuart worked as a “Calutron girl” at the Y-12 Plant during the Manhattan Project.

Leslie G. Ritner

Los Alamos, NM

Leslie Ritner was a member of the Special Engineer Detachment at Los Alamos. He was among the first engineers sent to Los Alamos from Camp Claiborne, Louisiana in late January 1944, serving for two years before being discharged in the spring of 1946.