of Chelsea, Michigan, age 73, died Tuesday, September 1, 2020 at St. Joseph Mercy Hospital in Ann Arbor. She was born March 5, 1947 in Chicago, Illinois, the daughter of Robert & Josephine Gerlach. Bobbie graduated from Sandwich High School in 1965. She married Roy George Sanderson in Aurora, Illinois, in 1967. They lived in Illinois until 1980, when they moved to Michigan. Bobbie and Roy went to Arizona in the winters. They attended the Chelsea Kingdom Hall. Bobbie worked for the US Postal Service in Millington, IL, and then the Grass Lake Post Office, where she retired. Friends and family were very important to Bobbie, and the grandchildren and great-grandchildren were a large part of her life.
She is survived by her son, Joel (Allison) Sanderson of San Tan Valley, AZ; daughter, Johanna Sanderson of Gold Canyon AZ; son-in-law Charles Vogt; 5 grandchildren, Jacob (Chelsea) Vogt, Joshua (Kylie) 
Vogt, Molly (Corey) Gorecki, Max and Meghan Sanderson; 3 great-grandchildren, Kasey, Ellie and Isaac Vogt; 3 sisters, Kathy (Gregg) Saewert, Deborah (Sean) O’Callaghan, Margaret (Mark) Richmond; and many nieces and nephews. She was preceded in death by her husband, Roy (9/1/1942-3/5/2020), her daughter, Amy Vogt, her sister, Victoria Gerlach, and her parents.
A memorial service will be held at a later date. Memorial contributions may be made to Mothers Against Drunk Driving. Arrangements were entrusted to Cole Funeral Chapel in Chelsea.
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