Lowen Dean Thomas, 37, was last seen on the grounds of the Marshall State School in Marshall, Missouri, at 8:00 a.m. on July 19, 1976. A resident of the institution since 1947, Thomas had no history of running away. On the morning of his disappearance, he was wearing a blue shirt and green trousers.
Thomas is described as a white male with brown hair and brown eyes, standing at 5'6" and weighing approximately 167 pounds. He also went by the nickname "Dino". Thomas is mentally disabled,
...Read MoreLast Seen: Jul 19, 1976