Jill Rosenthal vanished on October 29, 1963, only two days after she was born on October 27, 1963.
She and her brother, Jake Rosenthal, went missing, and various search teams were formed to find them.
However, nothing worked, and Jill has yet to be found after 58 years.
Her pictures or actual appearance are not available, but her possible appearance is created using technology.
People with similar facial characteristics are still being sought, but it appears to be a challenging job at the moment.
