Tammy Sue Clements was 14 when she disappeared from Lincoln, Nebraska, in 1980 after a family move and a fraught decision not to return with them to Niles, Michigan. At the time she had been living with her father, stepmother, and two half-brothers following the family’s relocation from Niles in 1979 or 1980; earlier she had lived with her biological mother and stepfather in Niles. Reports conflict about what happened next: family accounts say Tammy stayed behind in Lincoln, she told her mother in the summer of 1980 that she intended to travel to California with new friends, a photograph dated November 27, 1980 was later found, and there are reports of police contact with her in Michigan in April 1981.

Tammy was never issued a driver’s license or state ID and her Social Security number has not been used. She was described as 5 feet 2 inches to 5 feet 5 inches, 120 to 130 pounds, brown hair, brown eyes, a pronounced inverted V gap between her front teeth, and sometimes wore glasses.

Does anyone have information about Tammy’s movements in late 1980 or early 1981 that could help clarify this timeline?