Sally Field was 19 in The Way West when she played the character 'Mercy McBee'.
That was over 56 years ago in 1967.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 76, and has starred in 64 movies in total, 63 of those since The Way West was released.
In The Way West, I think Sally Field looks: