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Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP2496) and 8 other sources
On a December morning in 1978, a 30-year-old woman named Andrea Jean Coyle left her grandparents' home in Bellwood, Pennsylvania. It was December 19th, and her destination was the Woodrow Wilson Adult Learning School in the nearby city of Altoona, where she was a student. Andrea, who was known to her loved ones as Andi, was wearing a plaid Woolrich jacket, blue jeans, a tan knit cap, and brown shoes. She intended to turn in her textbooks and receive her grades, a seemingly routine end to her coursework. However, after arriving at the school, she departed sometime before noon without ever collecting her grades and was never seen or heard from again. She had all her cash with her but left her identification behind, a detail that adds a layer of mystery to her sudden disappearance.

Andrea's life in the years leading up to her disappearance was marked by personal struggles. In 1971, she experienced a nervous breakdown and subsequently received electroconvulsive therapy, a treatment her sister believes had a lasting negative impact on her mental well-being. Following this, she married in either 1972 or 1973, but the marriage was short-lived. After a suicide attempt in September 1973, her husband sent her back to her parents. This period began a pattern of transient behavior for Andrea; she would often hitchhike across the country, maintaining sporadic contact with her family every few months. Her journey also included a brief stint in the U.S. Army from September 1974 to February 1975, which ended with a medical discharge. In 1976, an arrest for a petty crime in Washington D.C. led to a court-ordered stay at a hospital. At the time she went missing, she was voluntarily receiving treatment at the psychiatric ward of Altoona Hospital.

The disappearance of Andrea Coyle has remained a cold case, leaving her family with unanswered questions and a sense of unresolved grief. While authorities have considered the possibility that she may be deceased, no evidence has ever surfaced to confirm this. Her sister has expressed her belief that Andrea is gone but still longs for closure. The fact that Andrea frequently hitchhiked and had a history of disappearing for extended periods adds complexity to the investigation. She was known to travel throughout the eastern United States. The overview of this case reveals a woman grappling with significant mental health challenges who had a pattern of leaving her life behind. Her last known actions of leaving school without her grades and taking her cash but not her identification suggest a possible intention to depart, yet the complete silence in the decades since leaves a void of information. The lack of any substantial leads over the years has made it impossible to determine whether she chose to disappear and start a new life, or if she met with foul play during her travels.

Last Seen: Dec 19, 1978

Possible Unidentified Matches (10)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

80%Moderate
Jane Doe — Pennsylvania - unidentified case UP16509
Jane Doe — Pennsylvania
UP16509 • Found May 2, 1986
View case
Sex ✓Female
Age 100%Est. 30–45 vs 30 when missing
Race 100%White
Location 81%78 mi away, same state
TimingFound 7 years after last seen
Height 100%5'4" vs 5'3"–5'5"
Weight 67%175 lb vs 130–140 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
80%Moderate
Jane Doe — Ellery, New York - unidentified case UP15489
Jane Doe — Ellery, New York
UP15489 • Found Dec 6, 1983
View case
Sex ✓Female
Age 100%Est. 30–37 vs 30 when missing
Race 100%White
Location 70%126 mi away
TimingFound 5 years after last seen
Height 100%5'4" vs 5'3"–5'5"
Weight 100%128 lb vs 130–140 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
80%Moderate
Jane Doe — Gore, Virginia
UP6482 • Found Dec 30, 1979
View case
Sex ✓Female
Age 100%Est. 30–45 vs 30 when missing
Race 100%White
Location 79%87 mi away
TimingFound 12 months after last seen
Height 100%5'1"–5'4" vs 5'3"–5'5"
Hair 100%Brown vs Brown
77%Possible
Jane Doe — Littleton, West Virginia - unidentified case UP14234
Jane Doe — Littleton, West Virginia
UP14234 • Found Feb 13, 1983
View case
Sex ✓Female
Age 100%Est. 30–45 vs 30 when missing
Race 100%White
Location 70%126 mi away
TimingFound 4 years after last seen
Height 100%5'6" vs 5'3"–5'5"
Weight 100%135 lb vs 130–140 lb
Hair 50%Red vs Brown
76%Possible
Jane Doe — Kentucky
UP6710 • Found May 26, 1980
View case
Sex ✓Female
Age 100%Est. 25–40 vs 30 when missing
Race 100%White
Location 40%353 mi away
TimingFound 17 months after last seen
Height 100%5'2" vs 5'3"–5'5"
Weight 100%123 lb vs 130–140 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
75%Possible
Jane Doe — Philadelphia, Pennsylvania - unidentified case UP2721
Jane Doe — Philadelphia, Pennsylvania
UP2721 • Found Jan 12, 2000
View case
Sex ✓Female
Age 100%Est. 30–45 vs 30 when missing
Race 100%White
Location 60%173 mi away, same state
TimingFound 21 years after last seen
Height 100%5'3" vs 5'3"–5'5"
Weight 90%160 lb vs 130–140 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
75%Possible
Jane Doe — Staten Island, New York - unidentified case UP6955
Jane Doe — Staten Island, New York
UP6955 • Found Sep 6, 1989
View case
Sex ✓Female
Age 100%Est. 18–30 vs 30 when missing
Race 100%White
Location 53%223 mi away
TimingFound 11 years after last seen
Height 100%5'4" vs 5'3"–5'5"
Weight 90%110 lb vs 130–140 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
75%Possible
Jane Doe — Rawley Springs, Virginia - unidentified case UP6249
Jane Doe — Rawley Springs, Virginia
UP6249 • Found Nov 14, 1980
View case
Sex ✓Female
Age 100%Est. 20–30 vs 30 when missing
Race 100%White
Location 66%144 mi away
TimingFound 23 months after last seen
Height 100%5'1"–5'3" vs 5'3"–5'5"
75%Possible
Jane Doe — Neptune, New Jersey - unidentified case UP1498
Jane Doe — Neptune, New Jersey
UP1498 • Found Jul 1, 1980
View case
Sex ✓Female
Age 100%Est. 20–30 vs 30 when missing
Race 100%White
Location 52%231 mi away
TimingFound 18 months after last seen
Height 84%5'7" vs 5'3"–5'5"
Weight 100%135 lb vs 130–140 lb
Hair 100%Brown vs Brown
75%Possible
Jane Doe — Upper Marlboro, Maryland - unidentified case UP2260
Jane Doe — Upper Marlboro, Maryland
UP2260 • Found Sep 30, 1979
View case
Sex ✓Female
Age 88%Est. 18–29 vs 30
Race 100%White
Location 66%147 mi away
TimingFound 9 months after last seen
Height 100%5'5" vs 5'3"–5'5"
Weight 71%173 lb vs 130–140 lb
Hair 100%Brown vs Brown
Eyes 0%Blue vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.