June Lockhart was 12 in A Christmas Carol when she played the character 'Belinda Cratchit'.
That was over 85 years ago in 1938.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 98, and has starred in 56 movies in total, 55 of those since A Christmas Carol was released.
In A Christmas Carol, I think June Lockhart looks: