Seventeen-year-old Tracy was last seen at the Alex Acres Trailer Park off Pennsylvania Route 147 at 10:00 p.m. on August 5, 1989 in Millersburg, Pennsylvania.
She was trying to visit her sister and brother-in-law who resided at the park, but they were not at home. She dropped off a barbecue grill and some grocery store coupons on their front steps.
Tracy never arrived back at her family's house in Millersburg, Pennsylvania and has not been seen again; the trailer park is approximately seven miles west of her own home.
Tracy was not reported missing until the next day because her parents thought she had spent the night at her sister's home, as she often did. They called police after finding out Tracy was not at her sister's house.
Tracy's blue-striped white 1971 Mercury Comet was located at the town square in Millersburg on August 6, 1989; her belongings were not inside the vehicle and there was no trace of Tracy.
In December of 1993 (four years after Tracy's disappearance), parts of her wallet, including her driver's license and National Honor Society card, were found; the wallet located in an area along Wiconisco Creek, off Rakers Mill Road in Washington Township, nine miles from Millersburg.
Authorities believe that Tracy may have been on her way to see her boyfriend when she disappeared; his parents lived a short distance away from the Millersburg town square.
Police have focused the investigation on Tracy's boyfriend and his family over the years. The brother of Tracy's boyfriend stated that his family had been cooperative with the investigation and were innocent of involvement in Tracy's disappearance, and that the investigation has been mishandled.
Tracy does not have a history of running away from home. She left $300 behind in her bedroom and $400 in her bank account.
Authorities believe that Tracy was abducted, probably by someone she knew. As of 2018, her case remains unsolved.
Tracy is described as a shy, studious teenager with no enemies; she was about to start her senior year at Halifax High School and was a member of the National Honor Society.
Tracy is described as a Caucasian female with brown hair, green eyes, is 4'10 and weighs 85 pounds. She has pierced ears, a small mole on the center of her chin and previously had braces on her teeth.
She was last seen wearing a size small light blue and white floral print shirt, size small light blue and white shorts, size 4.5 or 5 white sneakers, a silver Timex watch on her left wrist and a white gold Halifax High School class of 1990 ring with a white diamond.
She was carrying a small purse with thin straps and the image of a horse or unicorn on the side, as well as a keyring with an image of the cartoon character Roger Rabbit.