Mallinckrodt, Dean T., of St. Charles, Missouri, died on Monday, October 18, 2010 at the age of 55. Dearest husband of Linda Mallinckrodt NEE: Backowski; dear son of Audrey Mallinckrodt and the late Robert Mallinckrodt, devoted father of Christine (David) Sadler, Mike Mallinckrodt, Beth Kincaid and Nick Kincaid; beloved grandfather of Brandon Mallinckrodt, Sara Mallinckrodt, Carter Kincaid and Emily Sadler; dear brother of Jan Masters. He was loved by many nieces, nephews and friends. He was the President of Water Cooling Equipment, Inc., a member of Local 1987, FOFSA and COCA.