(Nee Ostermick) Passed away on 9/9/20 at 90 years old. Preceded in death by her Beloved husband Herman. Also preceded in death by her loving son Jon and adored brother Bruce Ostermick. Cherished mother of Joy (Jim) O'Hearn, loving grandmother of Tasha (Jason Rundle) and Daniel O'Hearn. Further survived by nieces, nephews, other relatives and friends. Her sweet smile and kind gentle demeanor will be greatly missed by all that knew her. Visitation to be held at Wisconsin Memorial Park on Friday, September 25, 2020 from 10-11:30. Service at 11:30. Following the service, Doreen and her husband Hermann (who died and was cremated in 2018) will be laid to rest together. Masks are Mandatory.