DuBois, Mary Ann, of St. Charles, Missouri, died on Tuesday, December 6, 2011 at the age of 83. Loving wife of the late Harold J. DuBois; beloved daughter of the late John H. and Catherine Sudheimer; devoted mother of John (Mary) DuBois, Dennis (Karen) DuBois, Susan DuBois, David (Barbara) DuBois, Richard (Sherry) DuBois and Joseph (Vickie) DuBois; cherished grandmother of Genevieve, Peter, Alexander, Matthew, Kimberly, Robert, Colleen McCotter, Ryan, Emily, Christopher, Brendan, Nicholas and Joseph; treasured great-grandmother of 7; dear aunt, sister-in-law, cousin, and friend to many. She is preceded in death by her grandsons, Benjamin DuBois and James Waller and brothers, Frederick and Henry George Sudheimer. In lieu of flowers, memorials may be made to the Crohn's & Colitis Foundation or SIDS Resources.