Helen Mueller nee Comfort, age 89 of Chicago passed away December 23, 2020. Beloved wife of the late Sherwin Mueller. Loving mother of Robert, Katherine (Thomas), and the late Terrance (Sherry). Devoted grandmother of Cory, Kim (Jason), Greg, Katie, and the late Michael. Caring great grandmother to Lindsey, Michael, Kylie, Makenzie, and Nicholas. Cherished aunt to many and great friend to all.