Student, Northwestern University, 1950. Student, Oberlin College, 1951. Bachelor of Science in Psychology, Allegheny College, 1955.
Administrative secretary Master of Business Administration Program University Chicago, 1955-1957. Assistant editor Annals of Mathematical Statistics, University Chicago, 1958-1960. Lexicographer Open Court Public Company, LaSalle, Illinois, 1964-1965.
Lexicographer Thorndike Barnhart Dictionaries Scott, Foresman and Company, Glenview, 1965-1986, senior textbook editor, 1985-1997.
Singer North Shore Choral Society, Evanston, Illinois, 1972—1982, since 1997. Literacy tutor Time to Read, Glenview, Illinois, 1989—1997, Kingsley Elementary School, Evanston, 1997—2003.
Married George Horace Zilliac, March 13, 1954. Children: Gregory, Barbara, Jocelyn.