Francis Lorraine Byrne, 42 and living with Down syndrome, vanished from Interlachen, Florida, on May 11, 1989. She lived at an assisted living facility and was last seen sitting on a swing near the facility on Interlachen Boulevard wearing a light-colored shirt, striped shorts, white New Balance sneakers and a gold wristwatch with a black band. Byrne required medication but did not have it when she disappeared.

She had wandered away from the facility before but typically stayed close by; on this occasion she did not return. A search dog lost her scent near the road, and investigators have said that she may have accepted a ride from a passing motorist. The case remains unsolved and is still listed with local authorities and NamUs.

If anyone in Interlachen around May 11, 1989, remembers seeing Francis or a woman matching her description getting into a vehicle, please come forward with details.