[ccernaf]

I'm surprised at Winston and Franklin - I'm pretty confident that the bump/spike was due to Churchill and Roosevelt. Barack unfortunately was not in the list, so we can't compare that. But compare that to Joseph (Stalin), also a common name, which didn't experience a dip. But then again, neither did Adolph.

Is there a name that experienced a dip, and then became popular again, due to a significant person?

[deckiedan]

I would guess that Joseph wouldn't dip due to the huge number of other famous Josephs. (St. Joseph being the most famous). http://en.wikipedia.org/wiki/Joseph_%28name%29#People_known_...

Compared to Winston (http://en.wikipedia.org/wiki/Winston_%28name%29) which is only common in British/American history.