Douglas Henderson was 20 when he and a companion, Alexander Korecki, set out in a 14-foot fiberglass canoe on Georgian Bay in Ontario in May 1974. They were paddling near the shore of Depot Harbor in an area called Big Sound when the canoe capsized about 500 feet from their campsite. What happened in the water after the canoe overturned is not publicly known.

Both men disappeared after the capsizing. The suddenness of the accident left family and friends without clear answers.

If anyone was at Depot Harbor or Big Sound that day or has information about the incident, please share what is known.