What’s in a surname?

From BBC:

Everyone’s got a surname, but now a website which maps names against areas of the country where they are most common helps shed light on where our families come from.

See how Tuckers, Walkers and Fullers have dispersed

Its weird to see your last name on a website like BBC. Once the site calms down a bit I’m going to look up Tucker and see what it says. I had no clue that many Tuckers were there.