Complex sentence: From Boston, Minkins was spirited to Canada, where he settled in Montreal, in the section of the city known as Old Montreal, where he made a living again as a waiter, then operating restaurants and, finally, as a barber.
Split into simpler sentences: From Boston, Minkins was spirited to Canada, where he settled in Montreal, in the section of the city known as Old Montreal. There he made a living first as a waiter, then operating restaurants of his own and, finally, as a barber.