Shirley was last seen leaving her half-sister's apartment on Union Street in Concord, New Hampshire at 9:30 p.m. on July 13, 1984. She was planning to pick up some money a woman owed her for babysitting, then visit her 21-year-old boyfriend at his place of work, Concord Litho, which is on Old Turnpike Road near the Merrimack River. It's unclear whether she ever arrived at Concord Litho. She has never been heard from again. The inner edges of Shirley's upper front teeth are chipped. One of her feet turns slightly inward while she is walking. Shirley's nickname is Tippy.