Lois Chiles was 23 in Together for Days when she played the character 'Shelley'.
That was over 52 years ago in 1972.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 77, and has starred in 34 movies in total, 33 of those since Together for Days was released.
In Together for Days, I think Lois Chiles looks: