What was the name of the two children that the Ghost of Christmas Present showed to Ebenezer Scrooge?

There were two children specific to the Ghost of Christmas Present. One a boy call Ignorance and the other a girl called Want.

The Ghost however, does make reference to Tim Cratchet. As he takes Scrooge to the Cratchet house he highlights the little crutch standing on its own next to the fire and no sign of the child who of course will die if Scrooge does not make some life changes.