Mary Lou Nowak, nee Weber, 72 years.  Beloved wife of John C. Devoted mother of Dawn (Michael) Dapkus and Denise Nowak.  Loving grandmother of Trevor and Morgan.  Dear sister of the late Beverly Esposito and Gerald Weber.  Visitation Sunday 3-9 P.M. Funeral Monday 9 A.M. from the Becvar & Son Funeral Home, 5539 W. 127th Street, Crestwood, to Incarnation Catholic Church, Palos Heights, for a 9:30 A.M. Mass.  Interment Good Shepherd Cemetery, Orland Park.  In lieu of flowers, donations to the American Cancer Society would be appreciated  .  (708) 824-9000  or www.becvarfuneralhome.com