Mary Diane Boughton, 67 of St. Clair passed away Sunday, October 18, 2015 in St. Clair. Mary, daughter of the late Everett Gann and wife Ruby nee Gray was born August 19, 1948 in Chaffee, Missouri. She was a faithful member of the First Baptist Church of Washington and generously dedicated her time to volunteer at Harmony House in Washington several times a week. Mary was preceded in death by her parents, Everett and Ruby Gann and three brothers, Ernest Gann, Jerry Gann and Sherman Gann. She is survived by three sons, Steven Boughton and wife Scheryl of Beaufort, Brian Boughton and wife Dominique of Florissant and Jason Boughton of Washington; one daughter, Sherry Reed an husband Larry of Pennsylvania; two brothers, Bill Gann and wife Marsha of St. Clair and David Gann and wife Kim of St. Clair; one sister, Delores Marler of St. Clair; nine grandchildren, Matthew, Alecia, Holli, Andrew, Michael, Allyssa, Logan, Caleb and Mason; seven great-grandchildren; nieces; nephews; cousins; other relatives and many friends.