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Steven Anderson

Unknown MissingCold Case
Steven Anderson
Steven Anderson

Missing Persons Details

Missing Person
Steven Anderson
Last Seen
April 07, 1975
Case Status
Unknown Missing
Intake Date
September 16, 2021
Source of Record
Medical Conditions
Steven Anderson was known to have trouble communicating and diagnosed with a developmental disability. 



Physical Description

Current Age
Hair Color
Eye Color
Distinguishing Features
Steven Anderson had a chipped front tooth.
Last Seen Wearing
Anderson was last seen wearing a blue hooded jacket and blue pants.

Details of Disappearance

According to open source information, David Williams, then age 12, and Steven Anderson, then age 17, were reported missing from the New Lisbon State School on 04/07/1975.

The New Lisbon State School, now known as the New Lisbon Developmental Center is located in Burlington County, New Jersey. Both Williams and Anderson lived on the 1,896-acre center located off Route 72 in the New Jersey Pinelands. Both Williams and Anderson had been diagnosed with 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.

Case Numbers

Verified with Law Enforcement

Police Contact Information

NNew Jersey State Human Services Police
John Mastalski, Detective
Local Police Case Number
(800) 233-2915

Be Advised

If you see Steven Anderson anywhere, please do not make contact. Call your local emergency number like (911) or the phone number indicated for law enforcement on this record and they will instruct you on what to do. You can also let them know Steven Anderson's name and they are profiled on this site. This way they can visit the profile and get information faster and more complete to use for follow up. You can always leave us a tip on what you saw by clicking the "Tip" link in the menu at the top of this page.

NOTICE: If the information contained in this missing persons profile is inaccurate, needs to be updated, or the person has been located, please let our staff know as soon as possible. Thank you.

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