Betty F. McErlean, beloved wife of the late Thomas P; dear mother of Bill (Sue), Joan and Carol (Mike Levin); loving grandmother of Fallon and Patrick McErlean and Emma and Maddie Levin; fond sister of Marianne (Karl) Justmann; also survived by many nieces and nephews.  Visitation Friday 3 to 9 p.m. at Michalik Funeral Home, 1056 W. Chicago Avenue.  Family and friends will gather Saturday at Old St. Mary's Church, 1500 S. Michigan for a 10 a.m. Funeral Mass.  In lieu of flowers, donations to the Alzheimer's Association, Greater Illinois Chapter, 8430 W. Bryn Mawr, Suite 800, Chicago, IL 60631\`, phone 847-933-2413 appreciated. For further information, 312-421-0936.