Easter Ellen Cupp
First woman in North America to receive a PhD in oceanography
About Easter Ellen Cupp
Lived 1904 – 1999 (aged 94–95). Easter Ellen Cupp was a marine biologist, oceanographer and school teacher.
Easter Ellen Cupp (March 30, 1904 – August 27, 1999) was the first woman to get a Ph.D. in oceanography from Scripps Institution of Oceanography. She is known for her work on diatoms.
Early life Cupp was born on March 30, 1904, which was the day Easter holiday is celebrated, in Neola, Iowa.
Education In 1910 she moved to Whittier, California where she would later attend college. Cupp received an undergraduate degree from Whittier College (1926), where she received a master's degree from the University of California (1928). From 1929 until 1934 she worked as a research assistant at the Scripps Institution of Oceanography. Oceanography was a new degree at the time, and Cupp was one of only five people with a Ph.D. in oceanography at the time.
Career Cupp both conducted research at Scripps and taught classes in phytoplankton ecology with W.E. Allen who had been her graduate advisor. The director of Scripps, Harald Sverdrup, had positive reviews of Cupp's work, but in 1939 he fired Cupp because he decided her research did not match the research goals of the institution. Sverdrup replaced Cupp with Marston Sargent who had arrived at Scripps a year earlier.
Later life After Scripps, Cupp worked with the Navy from 1940 until 1943, She retired from teaching in 1967.
Research Cupp is known for her research on diatoms, and she published a guide to diatoms found in the western United States, and other locations. She published works on different diatoms species she encountered in her investigations. Cupp was also known for her illustrations and collaborated with others on works requiring illustrations.
Selected publications
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Important facts
People in Easter Ellen Cupp's life
Named in this biography and alive at the same time
Contemporaries
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Frequently asked questions
Who was Easter Ellen Cupp?
first woman in North America to receive a PhD in oceanography
When was Easter Ellen Cupp born?
Easter Ellen Cupp was born in 1904 in Neola.
When did Easter Ellen Cupp die?
Easter Ellen Cupp died in 1999 in San Diego.
What was Easter Ellen Cupp's occupation?
Easter Ellen Cupp was a marine biologist, oceanographer and school teacher.
Sources & further reading
· Wikipedia: Easter Ellen Cupp
Cite this page
APA: Biography.guide. (2026). Easter Ellen Cupp. https://biography.guide/easter-ellen-cupp/
MLA: "Easter Ellen Cupp." Biography.guide, https://biography.guide/easter-ellen-cupp/.
Chicago: "Easter Ellen Cupp." Biography.guide. https://biography.guide/easter-ellen-cupp/.
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