Anonymous. Belfry Murders of San Francisco, or, The Strangest Crime of the Century (July 20, 1895) (Old Cap Collier Dime Novel No. 606).
Old Cap Collier fails to solve the mystery surrounding the discovery of two bodies in a San Francisco church belfry. Based on the Theodore Durrant case. Another version of this crime was published in 1957 in a true-crime paperback edition entitled The Girl in the Belfry (Gold Medal Series of Classic Murder Trials), by Joseph Henry Jackson and Lenore Glen Offord.
Baird & Greenwood 214; Herron