Saint Michael's College
Two additions and one update. The first year building that supposedly has the pentagram on the floor does not exist any longer. It was one of the wood buildings that was torn down long ago. It is mistaken for one of the quad buildings, but those buildings have concrete floors (not wood) in the attic and are clean of any symbols.
First addition - The haunting in Lyons Hall (old girls dorm that is now coed). There is an old man that haunts the upper floors and can be heard pacing (stomping) in the attic. It is unknown who the ghost was.
Second addition - Prevel Hall is an old house that was converted into an administrative building. Before Saint Mike's owned it the man of the house went off to war (possibly Civil War). His wife would put a candle in the steeple window every night to light his way if he came back at night. He died on the battlefield, but she kept putting a candle in the window in the hopes he would still return. She died but didn't leave. She still wonders the building waiting for him and has been know to still put candles in the steeple window at night.