Age 90, of Wilmington, DE, passed away peacefully on Wednesday, September 27, 2017 at Manor Care Healthcare Center in Pike Creek.Born in Chester, PA, Margaret was the daughter of the late Robert and Barbara (Sherrif) Buck and was the last of twelve children. She was a former member of Silverbrook United Methodist Church. She was predeceased by her husband, William L. Doberstein in 2002 and her granddaughter, Kristin Knoest (Doberstein) in April.Margaret will be dearly missed by her son and daughter-in-law, William and Marie Doberstein of Wilmington; her daughter and son-in-law, Deborah and John Moroney of Millsboro; four grandchildren, Doug, Laurie, Beth and Amy; and several great grandchildren.Funeral services will be private. In lieu of flowers, the family suggests contributions to Faithful Friends, 12 Germay Drive, Wilmington, DE 19804.