Richardson, Mary Katherine, of St. Charles, Missouri, died on Wednesday, February 2, 2011 at the age of 79. Loving wife of the late Frank Richardson; beloved daughter of the late Joseph and Henrietta Keisker; devoted mother of Joe (Lydia) Gorczyca, Billy Gorczyca, John (Barb) Gorczyca, Janice (John) Pierson and Kathy Gorczyca; cherished grandmother of Amy (Michael) Becker, Mandy Gorczyca, Tiffany Pierson, Jenny Pierson, Laura (Quinton) Phillips, Mike (Veronique) Gorczyca, Jason (Sherri) Gorczyca, Ryan Gorczyca, Mike Pierson, Ian Lowe, Noel (Susan) Fehr and Christopher Fehr; treasured great-grandmother of Maegan Becker, Gabriel Becker, Joanna Fehr, Sarah Fehr, Samuel Gorczyca, Kenya Gorczyca, Jordan Gorczyca, Xander Bemesderfer and Thomas Fehr; dear sister of Joe (Rose) Keisker and Janice Saputo; loving aunt of Kris Casteluccio, Anne Yoggerst, Julie (Gary) Bugajski, Joe Keisker and Michael (Chris) Saputo; beloved great-aunt of Victoria, David, Tara, Kevin, Mike and Jamie. She is also preceded in death by first husband, Anthony Gorczyca and daughter, Mary Ann Bruck. Mary Katherine was very active in the St. Louis Association for retarded children. Memorials may be made to National Alliance for Mental Illness (NAMI), 1750 S. Brentwood Blvd, Suite 511. St. Louis, MO 63144 or www.namistl.org