Rita B. Zemach, nee Dresner, age 89, of Deerfield, formerly of East Lansing, MI; respected statistician in education and government service; beloved wife of the late Rabbi Abraham Zemach; loving mother of Brian (Beth) Zemach and Marilyn (Richard) Greene; adored Grandma of Adam, Aaron and Abigail; devoted daughter of the late Samuel and Gertrude Dresner; dear sister of the late Helene (late Louis) Cole; cherished sister-in-law of Sarah (late John) Reuler. Rita was a passionate supporter of women's, social and Jewish causes. Service Thursday, 10:30 a.m. at B'nai Tikvah Congregation, 1558 Wilmot Rd., Deerfield. Interment Shalom Memorial Park. In lieu of flowers, contributions to Women's League for Conservative Judaism, 475 Riverside Dr., Suite 820, New York, NY 10115, www.womensleague@wlcj.org or Jewish United Fund, 30 S. Wells St., Chicago, IL 60606, www.juf.org Info: The Goldman Funeral Group, www.goldmanfuneralgroup.com (847) 478-1600.