Based on his Bible I wonder if he was of Korean ancestry if not a citizen of South Korea. However that doesn’t mean he wasn’t a Canadian citizen or an American citizen. He could have been born in Canada or America to first generation Korean American or Korean Canadian parents. Let me look up when immigration from Korea to Canada or America became legal.
Edit: Ok looking at the Wiki page on Korean Canadians it turns out the first “documented” Korean citizens to settle in Canada were Korean Christians sent to Canada as Seminary students back in the 40s but mainstream immigration didn’t pick up until 66 when immigration laws were amended thus making the trickle into a flood. Meanwhile Korean immigration to American began in the 1880s, stopped after Korea was annexed by Japan, then became fully open in ‘65 (even though international adoption and war brides did lead to a trickle of Koreans entering America). So theoretically “Ken” could be a Canadian citizen born to first generation Korean Canadian. Ok that makes finding his identity a bit easier…I think. Just have to go through Korean Canadian communities in Toronto and Vancouver (as well as Montreal) and see if any families reported a stop of communication from their sons.
Oh dear gods and goddesses I have shot myself in the foot haven’t I?