KOZAK, Marilynn J. (Kovar) Of Lexington, Dec. 28, 2014. Wife of Donald P. Kozak. Mother of Stephanie L. Kozak of Lexington/Woburn. Sister of Deborah Jicha and her husband Douglas of Santa Rosa, CA. Aunt of Ann, Edward, Anna, and Elise. Graduate of Northeastern University, class of 1974; Medical Technologist at Beth Israel Deaconess Hospital for 35 years. A memorial service will be held at a later date. In lieu of flowers, donations in Marilynn's memory may be made to the Mass. Society for the Prevention of Cruelty to Animals, at www.mspca.org.