Mallinckrodt, Mildred Meta (nee: Hackmann), of St. Charles, Missouri, passed away on Monday, December 20, 2010 at the age of 71. Loving wife of Marvin Mallinckrodt; dear daughter of the late Arthur and Olga Hackmann; devoted mother of Sandra Leezy and Sara (Matthew) Vollmar; cherished grandmother of Isabella and Jackson; dear sister of Louell (Kenneth) Gravemann, Norbert (MaryAnn) Hackmann, and David (Jana) Hackmann. She is also survived by many nieces, nephews, relatives and friends. Mrs. Mallinckrodt was a bookkeeper for many years and a homemaker, raising her two daughters. Her main passion in life was spending time with her loving family, especially her grandchildren and getting away to the Lake of the Ozarks. She was also a lifetime member of Friedens United Church of Christ. Memorials may be made to Friedens United Church of Christ General Fund or the American Cancer Society.