I believe I posted this 1870 drawing before but I just got today this information from Jean-Marie Hachey:
It was the John Crawford house called the "Verdun House" and was built in 1850. The land was purchased in 1842 by John Crawford and the land today is called Crawford Park. He also purchased in on the 29th of December the maison Saint-Dizier also called the "Old Stone House". His son, John Molson Crawford was the 3rd mayor of Verdun from 1884 to 1892.
The private road leading to the "Verdun House" is roughly Crawford street wich leads to the house wich was roughly at the intersection of Crawford and Churchill.
The drawing shows the lifestyle of the upper class Montreal society in the middle of the 19th century. Since the Verdun House and the Old Stone house where close to each-other, the two must have shared their activities.
The article appears on the Messager site at http://www.messagerverdun.com/ section SOCIÉTÉ - HISTOIRE VERDUN
Check out my own articles while you are there.
J.M. has also discovered the enclosed map of the "Verdun House" wich is a major find for our archives (SHGV)