Richterkessing, Clarence, of St. Charles, Missouri, passed away on Monday, May 20, 2013 at the age of 86 years, 6 months, 21 days. Loving husband of the late Pearl MaryAnn Richterkessing (NEE: Alfred); beloved son of the late Gustav and Lydia Richterkessing; devoted father of Gary (Joan) Richterkessing, Brian (Brenda) Richterkessing, Cathy (John) Horan, and Jodi (Mark) Cook; adoring grandfather of Danielle Richterkessing, Madeleine Richterkessing, Bill (Mimi) Waltke, and Jon Waltke; cherished brother of Bernice Hinnah and Dorothy Richterkessing; dear uncle, brother-in-law, and friend to many. He is preceded in death by his sisters Mildred Boeger and Marjorie Richterkessing. He was a member of St. Charles RC Airplane Club and an all-around handyman. Memorials may be made to SSM Hospice.