Oral Histories

In this interview, Roger Fulling discusses the various positions he held at DuPont during and after the war. He recalls a special request from the Australian government for smokeless powder that DuPont had to fulfill, as well as outlining the structure and history of the DuPont Company. He explains the other wartime work of the DuPont Company and how DuPont had to balance its Manhattan Project work with its other military contracts.

Roger Fulling served as a division superintendent in DuPont’s War Construction Program. In this interview, he discusses the priority that the Manhattan Project received in the industrial sector, especially with materials like aluminum. He talks about coordinating production with the armed forces, including General Douglas MacArthur. He explains how General Leslie R. Groves would intervene if a company was having difficulty acquiring materials or producing products to certain specifications. Fulling also mentions meeting some of the top scientists, including Eugene Wigner, who thought that scientists alone, not DuPont and their engineers, should work on the project, and how DuPont persuaded them otherwise. He remembers his interactions with General Groves after the war, and explains why Groves chose DuPont to work on the Manhattan Project.

Colonel Franklin Matthias was the officer-in-charge at the Hanford site. In the second part of his interview with Stephane Groueff, Matthias describes the personalities of the men he worked with, including Enrico Fermi and DuPont’s Granville Read. He recalls a visit by Fermi and Eugene Wigner to Hanford, and explains why Read got along well with General Leslie Groves. Matthias discusses the safety measures at Hanford, and recounts how a Japanese fire balloon temporarily knocked out power to the plant. He also explains how scientists conducted tests on salmon to assess levels of radioactive contamination in the Columbia River.

Roger Fulling began working with the DuPont Company in 1934. During World War II he was a division superintendent in DuPont’s War Construction Program. He also served as acting Assistant Secretary of Defense during the Eisenhower Administration. In this interview, Fulling explains his respect for General Leslie R. Groves, as well as the hierarchy of DuPont staff supporting him. He remembers key DuPont personnel, including Granville Read, Mel Wood, Gilbert Church, Frank Mackie, and others. Fulling talks about the troubles in acquiring materials and skilled laborers for the Hanford construction project. He also explains why he believes American industry should be praised for its tireless work for the war effort.

Watson C. Warriner, Sr., a trained chemical engineer, worked for DuPont on the Manhattan Project. During the war he worked on building ordnance plants and acid plants, and helped design and build the chemical separation plants at Hanford (also known as the 221 T-plant or “Queen Marys”). He discusses the trains and cask car system used at Hanford and life in the dormitories on the secret site. He recalls going to New York City with his wife to celebrate V-J Day with thousands of other people crowded into the streets.