https://youtu.be/2KApp699WdE 1:10:07 I noticed a portrait of a man in the concept art, just figured it may be an historical figure from Boston. By his clothing, he might have lived in the mid 1800's. Did some research and to me it looks like the portrait may be of John Chapman(AKA Johnny Appleseed) who was born in Boston. Or it could be of Richard Blackhall from the Blackhall family of Point Lookout. Marcella states she has heard of the Krivbeknih before she gets to PL and in Lovecrafts book, there are two of theses books and the family was from Greenwich(AKA Dunwich).

I think John Chapman don't really fit... different beard and hair style.