December 29 1839
Two years after the arrival of the pioneering four Brothers in Canada (1837), they were able to purchase the estate and former summer residence of the Governor of Montreal (October 1839). The chapel was blessed on this date in December. “This establishment became the real cradle of othe Institute in America.”
Brother Angelus Gabriel (FSC), The Christian Brothers in the United States 1848-1948: A Century of Catholic Education (NY: Declan McMullen, 1948), p. 66.