The person at the center of this case
Steven Anderson (age 17 at disappearance)
Missing Person · Open
51 years waiting · since 1975
STEVEN ANDERSON
Justice for Steven Anderson (age 17 at disappearance) — the trail went cold in 1975, but the truth hasn't.
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Key leads to think about
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person
Lead #1What happened to David Williams, Steven's 12-year-old roommate, who disappeared with him?
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witness
Lead #2Were there staff members or other residents at the ball field who may have witnessed the boys leaving or seen them after 4:15 p.m.?
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location
Lead #3Why did two boys with developmental disabilities who required supervision leave the supervised ball field area, and where were they headed?
Steven Anderson, age 17, and his roommate David Williams, age 12, disappeared on April 7, 1975, from the New Lisbon State School in New Jersey's Pinelands while walking back to their residence from a ball field. Both boys had developmental disabilities and required supervision, making their sudden disappearance highly unusual. Nearly 50 years later, their fate remains unknown, and investigators seek anyone with information about what happened to them that afternoon.
Case
#271
Federal Bureau of Investigation (FBI) Newark Field Office
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
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evidence
Lead #4Steven was last seen wearing a blue hooded jacket and blue pants with a distinctive chipped front tooth—have these items or identifying features ever been reported?
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clue
Lead #5The New Jersey Pinelands cover a vast area; could the boys have become lost in the surrounding wilderness, or is there evidence of foul play?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
April 7, 1975 New Lisbon, Burlington County, New Jersey Steven Anderson, then age 17, and David Williams , then age 12, were reported missing from the New Lisbon State School, now called the New Lisbon Developmental Center, located in Burlington County, New Jersey, on April 7, 1975. Both boys lived at the 1,896-acre center located off Route 72 in the New Jersey Pinelands.
They had diagnosed developmental disabilities and were unable to care for themselves without supervision. The boys, who were roommates, were last seen at approximately 4:15 p.m., walking towards their residence from a nearby ball field where they had been playing with staff members.
Remarks: Steven had a chipped front tooth. He was known to have trouble communicating.
Steven was last seen wearing a blue hooded jacket and blue pants.
Timeline of Events
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1975-04-07
16:15Last sighting of Steven Anderson and David Williams
The two boys were seen walking towards their residence from a nearby ball field where they had been playing with staff members at approximately 4:15 p.m.
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1975-04-07
Disappearance reported
Steven Anderson (age 17) and David Williams (age 12) were reported missing from the New Lisbon State School after failing to return to their residence.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:April 7, 1975 at 4:15 PM
Last Updated:September 11, 2026
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Case Information
Incident:April 7, 1975 at 4:15 PM
Last Updated:September 11, 2026