Marilyn McGreevy Tyznik (nee McGuinn), 83, died peacefully at home in Batavia after a long struggle with Alzheimer’s disease. Born at Catholic Charities on Dec. 19, 1931, she was adopted by Paul and Dorothy McGuinn of Oak Park and spent 46 years living in the village. She attended St. Giles School and Trinity High School.

She was a retired realtor in Geneva, a former president of the Wayne Garden Club, and she loved traveling, gardening, cooking, tennis, decorating and being surrounded by her family and many friends. A tireless volunteer, she gave her time to the Frank Lloyd Wright Home & Studio, Alcuin Montessori School, and many other worthy organizations. She was a Stephan minister at Faith Lutheran Church in Glen Ellyn.

Known for her beauty, both inside and out, she never met a stranger and had a smile for everyone.

Marilyn Tyznik was the wife of Anthony (Tony); the mother of Jim McGreevy of Oak Park and Judy (Bob) Steed of River Forest; the grandmother of Bridget Steed and Kathryn Steed (Daniel Hellebuyck); stepmother to four children and 12 grandchildren; and aunt to many nieces and nephews. She was preceded in death by her parents, Paul and Dorothy McGuinn; her brother, William (Mary) McGuinn; and her former husband, Alan McGreevy.

A memorial service will be held at 10 a.m. on Thursday, May 14, at Faith Lutheran Church, 41 N. Park Blvd., Glen Ellyn.

A second memorial celebration of her life will take place at 7 p.m. on Wednesday, June 10, at St. Giles Church, 1045 Columbian, Oak Park.

Donations would be appreciated for the Alzheimer’s Association, 8430 W. Bryn Mawr Ave., Suite 800, Chicago, IL 60631 ( or the Mercy Home for Boys and Girls, 1140 W. Jackson Blvd., Chicago, Il. 60607 (

Join the discussion on social media!