Fred Scrooge was his nephew and only living relative.
Since it was his sister's child it is not Scrooge. Maybe Fred Holloway or Holywell
Fred
I think one of Abrams nephews name is Isaac.
Ebenezer
Belle
She is never named in the original book as she is not a niece but Scrooges nephews wife
Scrooge's first name is Ebenezer.
Bob Cratchit
fezziwig
please tell MEEE
Mercury
Belle
Her name was Fan