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Margaret Peterson O'Hagan (1902-1997) was an abstract painter and educator active in Berkeley, California.
Margaret Peterson was born in Seattle, Washington studied at and studied at the University of California, Berkeley. She married Canadian writer Howard O'Hagan. In 1950, Peterson resigned her position as a longtime faculty member of the art department at the University of California, Berkeley after refusing to take an oath of loyalty influenced by McCarthyism. After 1950, Peterson continued to exhibit her paintings and moved to British Columbia, Canada. She died in 1997.
Ella Wharton Alluisi (1912-1996) was a painter and sculptor active in California.
Alluisi was born in Houston, Texas and studied at the University of California, Berkeley where she likely became acquainted with Margaret Peterson. She married Jean Alluisi and settled in Santa Cruz, California where she died in 1996.
