Historical research: Named lore, open cause
Compared with anonymous tour-site blurbs, Parker House material is thicker: a named long-serving employee on the record (Brehm, Boston Globe, 1992), hotel-circulated encounter summaries, and motifs that predate web ghost blogs. Still, these are witness and staff reports. Identifying any figure as Harvey Parker is interpretation (period dress, resemblance to portraits), not verified ID. No retained photograph or physical assay settles the question.
Room 303’s tragedy narratives conflict across retellings; treat death-and-smell stories as folklore packages unless a death certificate or contemporary notice is attached. Elevator stops and empty-room noise admit ordinary explanations (wiring, mis-sent cars, HVAC, neighboring rooms, expectation). Rocking-chair sounds remain unexplained in the stories themselves without establishing a ghost.
Dickens’s documented stay explains why third-floor activity gets literary decoration; it does not evidence his spirit. Same for Cushman: a known death at the hotel is not the same as a documented haunting.
Folklore correction — Stephen King / 1408: A widespread claim that King based “1408” on Parker House Room 303 (and that he stays here for Red Sox games) has been denied. Hotel materials call it rumor; King’s office has likewise dismissed the link. Do not treat 1408 as documentation of this case.
Bottom line: a famous continuously run hotel with decades of specific, sometimes named anecdotes and a strong self-aware ghost tradition. History of the building and guests is solid; paranormal cause stays open.