Mary Catherine nee Anderson Bytnar, age 81, of Oswego, IL died Friday, October 28, 2016 at Seasons Hospice in Naperville, IL. She was born September 4, 1935 in St Louis, MO the daughter of the late David E and Ellen M nee Patterson Anderson. She was a member of St Anne Catholic Church in Oswego, IL. Survivors include her daughter Ellen (Tony) Scalpelli of Oswego, IL, son David Bytnar in Yorkville, IL, four grandchildren Tony Scalpelli, Sarah Scalpelli, Giana Bytnar, Matthew Bytnar and a sister-in-law Patricia Anderson of Elk Grove Village, IL. She was also preceded in death by her brother John "Jack" Anderson. Visitation will take place on Wednesday, November 2, 2016 from 4:00 to 8:00 PM at the DUNN FAMILY FUNERAL HOME with CREMATORY 1801 Douglas Road Oswego, IL. Mass of Christain Burial will be celebrated on Thursday, November 3, 2016 at 10:00 AM at St Anne Catholic Church 551 Boulder Hill Pass Oswego, IL. Graveside service will be held at 2:00 PM Thursday, November 3, 2016 at Mount Auburn Cemetery 4101 S Oak Park Ave Stickney, IL. Memorials may be directed the American Lung Association 55 W Wacker Dr Suite 1150 Chicago, IL 60601. For additional information www.dunnfamilyfuneralhome.com or 630/554-3888.