Gust, Melvin R., of St. Charles, Missouri, died on Sunday, April 29, 2012 at the age of 73. Loving husband of Catherine A. Gust; beloved son of the late Earl and Dorothy Gust; devoted father of Mark (Pam) Gust and Randy (Angie) Gust; cherished grandfather of Danny Klemme, Julie and David Gust; dear brother of Ken (Joan) Gust, Dottie (John Brown) Mincke, Suzie (Russell) Cissell and Gary (JoAnn) Gust. Memorials may be made to The Leukemia and Lymphoma Society or St. Jude's Children's Hospital