Jill Lynn Rosenthal and her twin brother Jack were born to Gilbert and Marie Rosenthal in Atlantic City, New Jersey, on October 27, 1963. Reports from family and witnesses indicate that the twins suffered neglect and abuse as infants, including poor living conditions in the home.

In July 1965, around July 2, Jack, then 21 months old, was found abandoned alone in a stroller outside a department store, McCrory’s Variety Store on Broad Street, in Newark, New Jersey. He had no identification with him. At the time, he was mistakenly identified as another missing child, Paul Fronczak, and was raised under that name until DNA testing in 2015 confirmed he was actually Jack Rosenthal.

Jill disappeared around the same period in 1965 in Atlantic City. Her disappearance was not reported to authorities at the time, and it only came to light decades later after her brother’s identity was confirmed through DNA and genetic genealogy.

Both biological parents, Gilbert and Marie Rosenthal, are deceased. No one knows what specifically happened to Jill; whether she was abandoned elsewhere, placed with someone, or met another fate. Her case remains unsolved and active, with her brother continuing to search for her.

The image provided is a composite created by forensic artists with NCMEC who used facial data from her family members and twin brother.