Middletown, RI - Marie J. Bourassa Koch, 88, of Newport, RI, died Thursday, December 1, 2011 at John Clarke Health Care Center, Middletown, RI.She was the wife of the late Walter J. Koch.Born in Cascade, NH on September 9, 1923, she was the daughter of the late Peter and Delphine Label Bourassa.Mrs. Koch worked as an interior decorator for a number of years from home.She is survived by her daughter Maggie M. Cook and her husband John of Middletown. She also leaves her grandchildren and great grandchildren of Joshua Cook and his wife Nicola and their son Javiere of Florida, Adam Cook of Warwick and Jennifer Griffin and her sons Jonathan and Benjamin of Colorado. Marie was the sister of Maurice Bourassa and Alfred Bourassa both of New Hampshire. Her service will be private.Donations in her memory may be made to John Clarke Health Care Center, 600 Valley Road, Middletown, RI 02842 or to Odyssey Health Care of Rhode Island, 2374 Post Road, Suite 206, Warwick, RI 02886