Mary Ann Hutchinson was 20 when she was last seen in Evanston, Illinois, on July 19, 1979. A mother of a five-year-old daughter and one of six siblings, she worked at a Chase bank after getting that job through a high school program. Family remembered her as reserved but determined, with a smile that stood out to those who knew her.

Her mother, Jane Hutchinson, reported her missing to the Evanston Police Department on July 22, 1979. At the time she disappeared Mary Ann was described as 5 feet 0 inches tall, about 98 pounds, with black hair. Her body has never been found, and the case remains an unsolved missing persons investigation.

Her sister Cynthia Mayfield has said she believes she knows who is responsible, but no charges have been filed. Family and friends held a memorial at the Evanston lakefront in July 2023 to honor her memory. If anyone knew Mary Ann, her routines, or has information that could help, please come forward.