Freelance fashion model, 1950s. Designer, stylist Decter Mannikin Company, Inc., 1962-1992. Principal Betty Decter Company, since 1973.
Vice president Bellagio Arabians, 1985—1993. Founder Carpal Tunnel Public, 2005.
Founding member, co-chair Save the Santa Monica Mountains Committee, 1970. Founding member, chair No on Nowell Committee, 1973-1974. Member Los Angeles City Attorney's Committee on Political Reform, 1973-1974.
Founding member, chair Committee for Enforcement of Campaign Laws, 1974-1978. Founding member board William O. Douglas Outdoor Classroom, 1980-1990. Helped establish National Urban Park in Santa Monica Mountains, 1978-1980.
Active local politics, since 1969. Member The Group, 1984-1993. Advisory board Woman's Building, Los Angeles, 1988, CLARA Listing National Museum Women Arts, Washington District of Columbia, 2007-2008, Southern California Women's Caucus Art Artists Registry Web Page, since 2008.
Member of National Museum Women in Arts (southern council since 2006).
Married William Fenske, May 14, 1943 (divorced). Children: William Junior, Karalee. Married Gerald A. Decter, July 9, 1961.
1 stepchild, Tom.