Peggy Rahn was 9 when she disappeared from Pompano Beach, Florida, on December 29, 1969, along with her friend Wendy Stevenson, age 8. The girls had separately gone to the beach, met by chance, and were last seen about 1:00 p.m. walking to a nearby parking lot to buy ice cream. A convenience store clerk later said a man in his 20s with sandy blonde hair, driving a blue Chevrolet, bought the girls ice cream and cigarettes for himself; that man became a prime suspect but was never located.

Early speculation included drowning, but no bodies were recovered and Wendy was reported to be a good swimmer, so that theory was abandoned. Over the years several leads and suspects surfaced, including Kenneth Guy Shilts, who kept a notebook referencing Peggy and Wendy, and Gerard Schaefer, who later claimed responsibility; neither man was ever charged in the case. The girls remain missing and no remains have been found.

Anyone who knew Peggy or Wendy, or who remembers the Pompano Beach area on December 29, 1969, is asked to come forward with information that could help resolve the case.