I'll give you insight. Now everybody take a seat and put your listening ears on. Here comes a history lesson.
You see, back in the day, people used to be renowned for their trades or what they were good at or well-known for. You had the Smith's who were good blacksmiths, you had the Strawberries who were great farmers, easy to tell names like Cook, Potter, Ward, etc.
Well with Dickinson...
Well, I suppose you could say he was good with the PP.