Meryl Streep was 24 in Everybody Rides the Carousel when she played the character 'Stage 6 (voice)'.
That was over 49 years ago in 1975.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 74, and has starred in 135 movies in total, 132 of those since Everybody Rides the Carousel was released.
In Everybody Rides the Carousel, I think Meryl Streep looks: