Christopher Bush was two years old when he vanished from Germantown, Philadelphia, on April 5, 1975. His family had been displaced after a March house fire and were staying with relatives when a babysitter, Patricia Patty Warwick, took him to a delicatessen near Chew Avenue and Maryland Street. Warwick says she left Christopher alone in her 1966 maroon Ford station wagon while she went inside for about ten minutes; when she returned the toddler was gone. The boy was described as African-American, about 2 feet 5 inches to 2 feet 10 inches tall, weighing 25 to 40 pounds, wearing a blue denim coat with a white fur collar, light blue corduroy pants, and a hat that was later found in the car.

Warwick told police she believed the car doors were locked but also that Christopher could unlock them himself. An hour passed before authorities were notified. More than one hundred officers searched for days with no sign of the child and no evidence of a break-in to the vehicle. Theories have included wandering away or abduction, but the investigation produced very little and went cold. Does anyone have memories of that area or information that could help explain what happened to Christopher that morning?