Shirley Lee Cletheroe, 45, vanished from Fort St. John, British Columbia, in early summer 2006. Reports differ on whether she was last seen on June 9 or June 10; she had attended a backyard barbecue across the street from where she was staying with her sister and never returned. Family members say she worked at a local sawmill and was living with her sister at the time.

When the family tried to report her missing the next day, they were initially told to wait 48 hours. The Fort St. John RCMP launched an investigation on June 17, 2006, after she missed work and did not contact anyone. The case was later transferred to the North District RCMP Major Crime Section and eventually handled as a cold case in Prince George; foul play is suspected. Shirley is described as an Indigenous woman, about 5 feet 1 inch to 5 feet 3 inches tall, 120 to 132 pounds, with brown hair and brown eyes, wearing prescription glasses and bearing a small scar on the left side of her mouth.

Her family, led publicly by her sister Bev Cletheroe, continues to seek answers and calls for information that might explain what happened to Shirley. If anyone knew Shirley, saw her on June 9 or 10, 2006, or has information about her disappearance, please come forward.