Merry Christmas, everybody! And speaking of Christmas ...
In Charles Dickens' novelette, A Christmas Carol, the main character Ebeneezer Scrooge is referred to several times by others as "Uncle Scrooge", including his nephew Fred. However, Scrooge is the character's surname.
In modern English usage, it seems that usually uncles and aunts are referred to by their given name -- hearing "Uncle Tom" or "Aunt Em" is much more natural than "Uncle Travers" or "Aunt Brown".
Nevertheless, the appellation "Uncle Scrooge" appears six times in A Christmas Carol, and "Uncle Ebeneezer" zero times.
Was Charles Dickens following the norm of Victorian familiar address when writing A Christmas Carol, with the custom changing over the course of decades? Or has the tradition been unchanged and Charles Dickens was portraying an unorthodox address?