Gary Watson Maguire was 49 when he disappeared from the grounds of Monson State Hospital in Monson, Massachusetts on October 9, 1984. He was a resident of the facility; the official report simply lists him as last seen that day and never heard from again. Few details are available about his last known movements, and search and investigative efforts at the time produced no significant leads.

Monson State Hospital had served various roles since the 19th century, including care for the poor, a hospital for epileptics, and later a facility for individuals with developmental disabilities. Accounts of difficult conditions at the institution and several other unexplained disappearances from the hospital form part of the case background. The file remains open with the Massachusetts State Police and investigators ask anyone with information, however small, to come forward.

If anyone knew Gary, his routines at Monson State Hospital, or saw him around October 9, 1984, please share what you know.