What about Maria Florence Anjiras?
Based on the recon, the hair and facials might not match as well but circumstances, last name origins could be from Latino or Catholic influence, potentially Italian, and Ht/Wt match pretty close.
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Here is a condensed version of her Charley Project details:
Maria was last seen at her home on Milwood Road in Norwalk, Connecticut on February 12, 1976. She was supposed to go to a vocal lesson in the afternoon, then babysit a neighbor's child that evening. Her father saw her at 2:15 p.m., while he was leaving for work.
Maria did not go to her lesson or her 5:00 p.m. babysitting job. After her disappearance, her blue English Racer bicycle was found abandoned near St. Mary's Lane, approximately one mile from her residence. The bike was found at the home of one of Maria's friends, but the girl said she hadn't seen or heard from her. There was no sign of her at the scene and she never returned home.
In August 1976, a fifteen-year-old classmate saw Maria at a bar on Westport Avenue and told her she should go home. Maria started crying and said, "I know." She was accompanied by a man who was a member of the Charter Oaks Motorcycle Club. Police identified the biker and traced him to the town of Bethel, Connecticut.