Dorothy Malone was 17 in Gildersleeve on Broadway when she played the character 'Model'.
That was over 81 years ago in 1943.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
In 2018 she died aged 93, starring in 73 films in her career, 71 of those after Gildersleeve on Broadway was first released. If she were alive today she would be 99.
In Gildersleeve on Broadway, I think Dorothy Malone looks: