Memorials may be made to the American Parkinson Association of St. Louis or First United Methodist Church of St. Charles. Heuckroth, William "Bill", of St. Charles, Missouri, died on Wednesday, November 11, 2009, at the age of 82. Devoted husband of Margie Heuckroth (nee: Jaeger); dear son of the late William E. and the late Vera S. Heuckroth; loving father of Mark William (Sondra) Heuckroth and Brian Alan (Sandra) Heuckroth, treasured grandfather of Jennifer (Kevin) Manley, Rachel Heuckroth, Cassandra Heuckroth, Aaron Heuckroth, and great-grandfather of Colin Manley; dear brother of Carol Wilhelm and brother-in-law of Len Jaeger. Bill was a Civil Engineer and Project Manager for Ralston Purina for more than 20 years. He was also a U.S. Navy Veteran.