Mary has a heart condition and she had had recent surgery.
Circumstances:
Sometime between 8:00 and 9:00 p.m. on July 28, 1973 Mary and her husband Frank Oliva (photo below) left their home in the 1958 beige Chevrolet, license plate #22F-910 and drove away. The front door was closed, but not locked. They have never been heard from again.