Being Canadian, I don't agree that Jock didn't look French Canadian. There are definitely some physical characteristics of French Canadian people, being dark haired and dark eyed and being slight in stature. Almost 50% of French Canadians from Quebec have an admixture of Amerindian in their genetic markings.
So when I saw those PM images, coupled with the KOA story, I did think he possessed the darker complexion and physical characteristics of many French Canadian men. When I say French Canadian, I don't mean someone just born in Quebec ( prior Prime Minister Brian Mulroney was born in Quebec but he has no FC heritage other than his place of birth) I mean someone who can trace their lineage back several generations to ancestors in the 1700s. A link is at the bottom of this post.
As for the turquoise jewelry, it's possible it was bought somewhere in the southwest since that was where it originated but even in the 70s it had already made the trek to Canada because it epitomized the embrace of native culture, and a free spirit and open philosophy. Now, it would be extremely difficult to identify any jewelry origins unless you bought it at source. I've been to Central America, Mexico and the SW and I've seen exactly the same stuff. Now you can't tell where the stuff was made just by looking at it. Most likely, it's China now so we can't use it to identify where someone had been or came from.
The genomic heritage of French Canadians