Melora Hardin was 10 in The North Avenue Irregulars when she played the character 'Carmel'.
That was over 45 years ago in 1979.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 56, and has starred in 48 movies in total, 45 of those since The North Avenue Irregulars was released.
In The North Avenue Irregulars, I think Melora Hardin looks: