Does Goofy have a family name?

[Wolfsong]

If  you look at some of the Goofy  cartoons where he's in a domestic 
situation or where he has an office job, you'll find he's referred to as 
George Geef.  (It may even be George G. Geef, sometimes, I'll have to 
check next time I'm watching them.)  I like to think of this as  Goofy's 
real name with "Goofy" being his stage name.  However, I don't think 
they ever used the Geef name on "Goof Troop", but I've always thought of 
Max as that same little red-haired kid from the domestic Goofy shorts in 
teenage form.

Sigvald Grøsfjeld jr. wrote:

>Hi all!
>
>Unlike Donald Duck, $crooge McDuck, Mickey Mouse, etc. Goofy is never
>presented with a family name, at least not in English languaged stories.
>Does this mean that he dosen't have a family name at all? Or is it just
>never used? Once he was called Dippy Dawg - does that mean that his full
>US-name is Goofy Dawg?
>
>Sigvald
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