Resources from that place and time ...
Miscellaneous Articles for the Charlatan
Misc Articles for the Charlatan:
One of the book's main characters was loosely built on Mina Crandon, a real life "psychic" famous in 1920s Boston.
The Margery Pamphlet
The Cambridge Men
Miscellaneous Articles for Hawk House
A part of the book was loosely built around the murder in 1836 New York of Helen Jewett.
The Penny Press
Near Hawk Hill