On October 31, 1969, 16-year-old Patricia Ann Spencer, known as Patty, and 15-year-old Pamela Sue Hobley disappeared after leaving Oscoda High School in Oscoda, Michigan. The girls were last seen together around 2:00 p.m., walking east on East River Road; a later report said someone gave them a ride to downtown Oscoda or to a nearby gas station. They were not carrying purses, identification, money or extra clothing. Patricia was described as about 5 feet 3 inches to 5 feet 5 inches tall, 120 to 130 pounds, with long blond or brownish-blond hair and blue eyes; she normally wore glasses but did not have them the day she vanished. Witness reports also mentioned the girls speaking with someone in a van, but no confirmed sighting followed that afternoon and neither girl attended the planned homecoming game or evening parties.

Authorities initially explored a runaway theory, including an unconfirmed possibility the girls might have gone toward Flint, but family statements and the lack of personal belongings made a voluntary departure less convincing. Over the years investigators pursued tips and searched locations including a 1985 lead about a barn, and in 2013 police identified a person of interest but lacked enough information to act. The FBI still lists both teenagers as missing and there has been no confirmed contact with either since that Halloween afternoon. Does anyone who lived in Oscoda in 1969 remember seeing Patricia or Pamela that day or know new information that could help the cold case?