Apologies for belabouring the side-business of the song, but .... "Kelso" is Stan's creation, as far as I can see - presumably it's an odd rendering of "Kelsey". And to explain my observation that he "likens himself" to the iconic explorers of what became Canada: "How then am I so different from the first men through this way?" (I don't think he's talking about the Aboriginals. Not to say that they didn't have their explorers, too ...).