Schack, Irene, of St. Peters, Missouri, died on Wednesday, June 13, 2012 at the age of 93. Loving wife of the late Earl E. Schack; beloved daughter of the late Ulysess Grant and Louanzee Stout; devoted mother of Earl (Janice) Schack and Cheryl (Jerry) Montgomery; cherished grandmother of Brian, Chris and Melissa; treasured great-grandmother of 4. She is preceded in death by all of her brothers and sisters. Memorials may be made to St. Charles Crisis Nursery .