Kelly McGillis was 25 in Reuben, Reuben when she played the character 'Geneva Spofford'.
That was over 40 years ago in 1983.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 66, and has starred in 45 movies in total, 44 of those since Reuben, Reuben was released.
In Reuben, Reuben, I think Kelly McGillis looks: