This parson's name was Yorick, and he came from a very old Danish family. Sound familiar?
Tristram suspects he was the very Yorick of Shakespeare's Hamlet, but he leaves it up to the reader to figure out the facts. He hints at a later travel narrative based on his time as governor to Mr. Noddy's eldest son, and then makes a racist claim about the Danish—they're all the same. No geniuses, but lots of pleasant folk.
The English, on the other hand, are all over the map. Some are total dunces, and some are whip-smart. But Yorick wasn't much like a Dane. He was a whimsical guy, always getting into trouble. He loved life and hated people who used being serious to cover up stupidity.