Achieved iconic success at age 51 when she joined the Mary Tyler Moore Show in 1973
Laura Ingalls Wilder
Published her first "Little House on the Prairie" book in 1932 when she was age 65
Achieved real success at age 41 when she published her first book, Entertaining.
Her wedding in 1989 at age 40 was the beginning of her success when she decided she wanted to become a designer, opening her first bridal boutique the following year.
Along with her husband, Tim, when they both turned 42, they gave up their legal careers to write their first restaurant guides. Their company is part of Google now.
At age 40 in 2000, Robin was taking some time off work to be with her children when she and her friend, Antje Danielson, came up with the car-sharing company, Zip Car.
Julia didn’t publish her first cookbook until age 39; then, at age 51, she made her...