Kathy Diana Pendelton, 22, disappeared from St. Louis, Missouri in the spring of 1976. The last known contact with her was May 31 of that year. She was described as a white female with brown hair and gray eyes, 5 feet 4 inches and about 115 pounds.

When Kathy was last seen, her clothing and personal belongings were left behind, a detail that suggests she did not plan to be gone long. Few additional facts have emerged over the decades, and the St. Louis Metropolitan Police Department continues to hold the investigation. The lack of solid leads has left family and investigators without a clear timeline of her final hours.

If anyone knew Kathy, saw her around late May 1976, or has information that could help, please come forward.