I strive to be as accurate as possible with my historical details concerning Victorian Toronto. However, in one instance I have changed the facts to suit the fiction. J. M. Massie was the warden of the Central Prison, not the Don Jail, as I have it in the book. I made this change for two reasons: The Don Jail still exists and you can go and have a look at it if you want to (the outside only). The Central Prison, which was on Strachan Street, was torn down. Secondly, Mr. Massie left behind correspondence and a fascinating journal, which I was able to read. Some of the things I have him say in the book are his own words, and the views he expresses are certainly his.