Regardless of details, however, one thing is for certain – Mary’s spirit still remains. Ringling’s Keating Hall is considered by many paranormal researches to be one of the most haunted buildings on any campus in the United States. Even though some believe she was successfully exorcised by a local priest a few years ago, many of the students living in Keating Hall know better.
— Florida’s Ghostly Legends and Haunted Folklore Vol. 3 9781561643998