William Frank Mellis III, known as Bill, was 61 when he disappeared from the St. Louis area. The last confirmed contact was February 9, 2017. At that time he was living a homeless lifestyle and had been staying temporarily with a family member at the La Salette Apartments in St. Louis. One report lists Weldon Spring, Missouri, as a last known location, but overall his final movements are unclear.

Bill is described as five feet ten inches, about 150 pounds, with graying, balding hair, a full gray beard and blue eyes; he wore glasses or contact lenses. No information about his clothing or belongings at the time of his disappearance has been released. The Missouri State Highway Patrol Troop C is handling the case and it remains open, with few concrete leads and no confirmed sightings after that February day.

If anyone in the St. Louis or Weldon Spring area remembers seeing Bill around early February 2017 or has information that could help investigators, please come forward.