Al Zeltmann grew up in Brooklyn, New York. After being drafted into the Army during World War II, he was assigned to the Special Engineer Detachment and arrived at Los Alamos in 1944. After the war, he stayed at Los Alamos, and worked as a physical chemist at the Los Alamos laboratory for nearly 40 years. In this interview, he recalls his Manhattan Project work, including on the “RaLa” experiments with Gerhart Friedlander, and describes the relationship between the military and civilians on “The Hill.” He also remembers receiving some unusual instructions from a mail censor after his wife complained he “wasn’t very warm” in his letters.
Ruth Howes is professor emerita of physics and astronomy at Ball State University with an interest in the history of women physicists. She has researched and written on the role of female scientists in the Manhattan Project. Howes is the co-author of “Their Day in the Sun: Women of the Manhattan Project,” which tells the “hidden story of the contribution of women in the effort to develop the atomic bomb.”