Johnson, Mary, of O’Fallon, Missouri, died on Friday, May 28, 2010 at the age of 69. Beloved daughter of the late Elmer and Janice Cox; devoted mother of Troy (GiGi) Johnson, Camie (Andrew) Chisholm and Gail (Robert) Contreras; cherished grandmother of Crystal Chisholm, John Chisholm and Robert Abel Contreras; dear sister of Richard Cox, Janice Rauck, Jeanie Gwaltney and twin sister of Motsy Barth; beloved aunt, cousin and friend to many. She is preceded in death by her sister, Vivian Keehn and former spouse, Gale Johnson. Memorials may be made to Tourettes Syndrome Research