A lot of gentiles changed their names to. I guess just to make them more pronounceable or ‘normal.’
Yes, the American branch of the Hitler family changed its name after World War II. http://www.nytimes.com/2006/04/24/nyregion/24patchogue.html?_r=0
Of course,there was that thread yesterday which discussed whether or not Hitler had Jewish blood. So maybe that isn’t the best example.