Sorry, I cannot find a connection or mention of your Benjamin. The Montagues listed are Anne Murray Fletcher Montague, who married a Chief Justice Montague (first name not given) of Winnipeg, Canada. They had two daughters, Eleanor Montague Wintermute (husband's irst name not given)
and Anne Isabel Montague Moncrieff, also of Winnipeg. I cannot find dates for any of these people, but this partial genealogy was written around 1934. Sorry not to make a connection - I'd really like to get this scrapbook back to its proper family owners.