Chisolm, Retha, of St. Peters, Missouri, died on Thursday, August 30, 2012 at the age of 87. Loving wife of the late Robert Chisolm; beloved daughter of the late Raymond and Gertie Wiedeman; devoted sister of Reba Whelchel and Letha Vines. Survived by many other nieces, nephews, cousins and friends. She is preceded in death by her two brothers, Raymond and Willard Wiedeman. In lieu of flowers, memorials may be made to American Cancer Society of St. Peters.