Alison Mary Thomas was 25 when she disappeared from Toronto on the night of September 28, 1978. An American who had just returned from nine years in Paris, she was staying temporarily with her brother and had plans to move to Montreal for a new job. That evening she attended a dinner party at her boyfriend’s home in the Yonge and Eglinton area and left shortly after midnight to walk a short distance to Yonge Street to hail a taxi. She never arrived and was not seen again.

Described as 5 feet 6 inches, slender, with long blonde hair and blue eyes, Alison was wearing a blue denim calf-length dress, an off-white woolen cardigan, and beige and blue rope-style sandals when last seen. Toronto Police investigated, questioned friends and the boyfriend, and considered possibilities from foul play to voluntary disappearance, though her planned move made the latter seem unlikely. No trace of her or her belongings has ever been found, and no confirmed contact, financial activity, or credible sightings have emerged.

The case has remained open and unsolved; it has been noted for similarities to the disappearance and later murder of Deborah Silverman a month earlier in a nearby neighbourhood, but no public confirmation links the two. Does anyone have memories of the Yonge and Eglinton area that night or information that could help Alison’s family and investigators?