Thomas Clair Vandermeer was 37 when he was last seen in Tacoma, Washington, on November 23, 1979. He was described as a white male, 5 feet 10 inches, about 130 pounds, with sandy, collar-length hair and blue eyes. At disappearance he wore a dark brown jacket, a maroon and white shirt, and maroon pants. The disappearance was reported to the Tacoma Police Department three days later.

Few details about the circumstances of his vanishing have been made public, and no photograph of Thomas has been available to aid searches or comparisons with unidentified remains. His case was entered into the National Missing and Unidentified Persons System on July 2, 2012. Despite ongoing attention, there have been no publicly reported breakthroughs.

If anyone knew Thomas, saw him in Tacoma in late November 1979, or has information that could help, please come forward.