It's made up for the game. Louis can make sense of this little mystery himself but it may be dependent on his skillset. Play about with the letters in the surname if your iteration of Louis doesn't remark upon it and the penny'll drop.
You're welcome. I'm kinda glad that it's not as we have so many book references already, all of which have some pertinence to the class system. Given one more to wrap my head around, I think it might explode.