Diane Kay Smith of Great Falls passed away on October 12, 2021. She was 68 years old. Diane was born on October 12, 1953, to Lois Kay and James David Porter. She worked as a cleaner for 40 years. She enjoyed holidays, sewing, and gardening. She is survived by her husband, Charles Edwin Smith; son, Casey Dale Porter; sister, Jenny Porter; brothers, Denny, Ricky, Rusty, and Todd Porter; sisters-in-law, Kimberly Burdick and Bambi Holland; and brother-in-law, Marty Gusick. She was preceded in death by her brother, Randy Porter; and brother-in-law, Shane Gusick.