I want to know if his mother had effectively renounced citizenship prior to his birth. Whether that action would preclude his obtaining citizenship at birth. His renouncing Canadian citizenship, while not legally being an American citizen would be a disaster for him.
“I want to know if his mother had effectively renounced citizenship prior to his birth.”
It is my understanding she moved to Canada in 1967. If true then she could not become a Canadian citizen before 1971, after his birth. And if she did become a Canadian citizen in 1971, that could explain why she appeared on 1974 Canadian voter rolls.