Roberta C. Dettman Obituary

We are sad to announce that, on February 25, 2026 we had to say goodbye to Roberta C. Dettman of Somonauk, Illinois, born in Geneva, Illinois. Leave a sympathy message to the family in the guestbook on this memorial page of Roberta C. Dettman to show support.

She was predeceased by: her parents, Cecil Luke Reilly and Clara (Patterson); her former husbands, Wallace Dunbar and Elmer Bergeson; her daughter Teresa Stewart-Hosey; and her grandson Dustin Avenarius.

She is survived by: her husband Leon Dettman; her sister Colleen Gocken of Plano; her children, Laurie Avenarius, Cathy Saxe, Pattie Huber and Donald Dunbar; her son-in-law Bruce Hosey; and her stepchildren, Brenda Albright (Don), Tammy Dettman, Paul Dettman, David Dettman (Tracy) and Joanie Triantafillou. She is also survived by 15 grandchildren, 28 great grandchildren and 2 great-great grandchildren.

Memorials may be given to the First Lutheran Church, 200 N Center St., Plano, IL 60545.