Disney-comics digest #527.

[H.W. Fluks]

Bob:
> Scrooge would recognize that rascal Glomgold after 100 years!

There is a 1-page gag drawn by Strobl where Scrooge can't remember an old
school friend. But when he gets a bank note, he says "I've had this note before".
Scrooge's explanation: "My memory of faces is bad, but I'll never forget the
serial number of a banknote!"

I know, Strobl is not canon, and it's just a gag, but it might "explain" that
Scrooge does not (or only vaguely) remember Glomgold.

--Harry.
(Hm.. would that old school friend have been from Scotland?)