Last names are kind of interesting. At first, they either projected your job (Baker, Hunter, etc.) or your lineage (Johnson (John’s son), Hanson (Hans’ son), etc.). Knowing this, if you look at certain last names now, you have to wonder where they came from.
Take Carrie Underwood, for example. Where did Underwood come from? I’m guessing it comes from the job tree. It’s a nicer way of saying whore. I imagine this conversation happening between her ancestors: Mother “Where’s our daughter?” Father “Where is she ever? She’s under wood.”