I am well aware of the fact, that a
German surname is far from being an indication to a
German background. But this was all
German. So I still wonder whether there is a Germanic root DAR. Of course your explanation as a blend of
DARRYL and
HAROLD sounds somewhat convincing. I don't know any famous American Darolds though that might have served as an example for some
German mother to name her boy Darold. Do you? But of course that Darold needn't have to be famous …