HHNManics had since brought it up in the past elsewhere (primarily HHN /r/), but if you've looked through Murdy's research, it seems that there is a lot coming into place linking it to something interesting.
In Murdy's recent research, elements such as mob caps, ascots, film footage from both Universal and sweedish films, medical instruments and techniques (including cyanosis), and research into pegan elements could lead credence to All Hallows Evil. Perhaps in the Early 1900's, with a mixture of both Witches! and AHE together?
@HHNManics work on the theory feels the most logical, and there is a lot you can do with it; and you could even incorporate things once planned for EDR to make sense with this.