Ann Miller was 21 when she disappeared from Indiana Dunes State Park near Chesterton, Indiana, on July 2, 1966. She had driven from Lombard, Illinois, in a 1955 Buick and went to the lake that morning with two friends, 19-year-old Patricia Blough and 19-year-old Renee Bruhl. Witnesses saw the three women leave their belongings on the crowded beach and enter Lake Michigan around noon, then speak with an unidentified young man in a small white boat; the three later boarded that boat and headed west, leaving towels, purses, and other items behind.

The abandoned belongings were collected by a ranger and later identified as belonging to all three women. Ann’s car remained in the parking lot with keys and other items inside. A wider search began on July 5 but found no confirmed trace of the women, the boats reported by witnesses, or the men seen with them. Investigators examined many possibilities, including accidental drowning, voluntary disappearance, disputes tied to the horse community, and an unproven theory involving illegal abortion, but no explanation has been confirmed.

Does anyone have information about that July 2 outing or remember seeing the boat or men described that day?