Eileen Francis Hynson was 19 when she disappeared from Napa, California, on June 1, 1976. She was last seen leaving the home she shared with her father and brother and was reportedly headed to Benicia for a bridal party dress fitting. Some accounts say she may have planned to stop at a resort on Lake Berryessa first, but she never arrived and has not been heard from since.

Eileen left her suitcase at home and investigators found no evidence she intended to run away. Her height is listed as 5 feet 2 inches, weight 130 pounds, with brown hair and hazel eyes. Authorities have long treated the circumstances as suspicious and her case remains open with the Napa County Sheriff’s Office; it was later placed on a list of cold cases thought solvable with modern forensic methods, but no breakthrough has been reported.

If anyone knew Eileen, saw her on June 1, 1976, or has information about her movements that day, please contact the Napa County Sheriff’s Office.