Ellen Elizabeth Swomley Kuhns (February 6, 1919 – August 29, 2009), also known as Ellen Swomley Stewart, was an American physicist. She taught at the New Jersey College for Women and Connecticut College for Women before researching sonar at the Navy Electronics Laboratory. Stewart was elected a Fellow of the American Physical Society in 1965. Early life and education Stewart was the daughter of Mr. and Mrs. Daniel Swomley. At five months of age, she and her family moved from her birth state of Pennsylvania to Cedar Rapids, Iowa. Her education came in that city's elementary schools and Franklin High School, from which she graduated in 1936. She graduated from Coe College in 1941. Her interest in physics developed from her work as a typist in Coe's physics department. She enrolled in physics to better understand what she was typing, and her interest grew enough that she changed majors. Her 1941 honor's thesis was titled, A simple method of visual spectrophotometry. Stewart enrolled in Johns Hopkins University for graduate work, choosing its offer of a double scholarship and a teaching assistantship over offers from other universities. While there, she met James Stewart, another student in the program. They completed their doctorates and married in 1945. Her dissertation was published in Physical Review and was titled Dispersion of the velocity and anomalous absorption of sound in hydrogen. Career Stewart taught at New Jersey College for Women (affiliated with Rutgers University), and Connecticut College for Women before moving to San Diego in 1951. After the move, she worked for the Naval Electronics Laboratory. Her classified activities focused on the use of sonar to detect mines and submarines. Selected publications References External links Obituary in the San Diego Union-Tribune University of Texas, Department of Physics History: UT Women in Physics Dr. J. L. Stewart Presents Paper, Attends Meeting Series in Italy Chapter 8: Post-War Research Program 1919 births 2009 deaths Coe College alumni Johns Hopkins University alumni Rutgers University faculty Connecticut College faculty Female United States Navy civilians Scientists from Pennsylvania People from Cedar Rapids, Iowa Scientists from Iowa 20th-century American women scientists 20th-century American physicists Fellows of the American Physical Society American women academics 21st-century American women