ELK POINT, S.D. — Cheryl Miller and Pamella Jackson had planned to celebrate the end of the 1971 school year by gathering with classmates at a quarry along a gravel road.
But the 17-year-old girls weren’t known for frequenting parties, so when they didn’t show up, other teens just assumed they had changed plans, perhaps to avoid any underage drinking or pot smoking.
It soon became clear that the well-liked pair from the farming town of Alcester, S.D., had vanished in their Studebaker. Now the 43-year-old mystery of their disappearance has been solved, largely by the ebb and flow of a dirty creek and the contents of a well-preserved purse.
“This has really been a tragedy for two families, a tragedy for a class, as well as all of South Dakota, to some degree,” state Attorney General Marty Jackley said this week.
The questions began on the evening of May 19, 1971. After visiting Miller’s ailing grandmother at a hospital, the girls met up with some boys at a church parking lot and started to follow them to the quarry. Miller drove the beige 1960 Studebaker Lark that had belonged to her grandmother, who died shortly after she disappeared. Jackson was in the passenger’s seat.
The boys missed a turn and accidentally drove past the party. When they turned around, they told authorities, they no longer saw the Studebaker’s headlights. They figured the girls had simply lost the nerve to attend the party.
The celebration went on, but the girls and the Studebaker would not be seen again until 2013.
In the following weeks, volunteers and law-enforcement officers searched the gravel pit, surrounding roads and even the nearby Missouri River. But their efforts yielded nothing. The mystery persisted, year after year, for more than four decades, tormenting the girls’ families, baffling investigators and inviting false allegations against a sex offender.