Ivan Lamont Matthews, 65, was last seen near Silver Island, Ontario, on August 13, 1984. He had a congenital club foot on his left side and sometimes used crutches. Witnesses reported his sailboat adrift about one mile from shore near the Sand Islands, seen without its captain aboard.

The circumstances point to a presumed drowning after he was apparently lost from the vessel in the cold waters of Lake Superior. The Thunder Bay Ontario Provincial Police continue to keep the file open, and no confirmed sightings or recovery of remains have been reported.

If anyone knew Ivan, sailed in that area in August 1984, or has information about his sailboat that day, please come forward.