#8: Meryl Streep (Age 41)
By 1991, Meryl Streep was already considered by many to be the greatest actress of her generation, with a house full of awards and three young children. That year, she and her husband, sculptor Don Gummer, welcomed their fourth and youngest child. Her daughter, Louisa Jacobson, was born when Streep was 41. She was at the absolute peak of her career, making movies back-to-back. Balancing that huge career with a growing family was just another role she seemed to master with grace.
