The first two prime ministers were born in Scotland, and at least two later ones were born in England. I don't know of any born in the US. The mother of the longest serving prime minister was born in the US, where her father fled after starting an unsuccessful rebellion, but the family was allowed back into Canada by the time the future prime minister was born.
So, Prime Minister Obama next?
I'd be down for that. I watched the inauguration of Trump while in the air en route to San Antonio, TX via Housten, TX from Vancouver - interesting times.
I'm related to a former Canadian Prime Minister, Sir Charles Tupper, who was also a father of Confederation. The Tuppers were Empire Loyalists having originally emigrated from England to Sandwich, Massachusetts in 1637. They left the US during the American revolution and settled in NS. Sir Charles Tupper was born in NS but only PM for less than 10 weeks.
Other routes to becoming PM by Bostonians?
be like O'Leary and try to become PM while calling Boston home. But a billionaire TV personality that only looks out for themselves would never be elected leader of a country in this era would they? ;-)
Or try this approach and get a job at Harvard. Ignatieff left his Harvard prof job to try to become Canadian PM but living and working in Boston for a while was viewed as uncool by some Canucks. **actually Ignatieff was the target of a nasty attack ad campaign (targeting his time in Boston) by the same party that Bostonian OLeary now wants to lead. Ironic.
So to make a long story short you can leave Boston and someday a family member can become PM but it may take a few generations to be PM and then only for a few weeks.
But has a Texan ever become the Canadian PM?