P.D. James wrote her first crime novel at age 40 while working for the British home office. Seven more followed before she retired from civil service at 59. She wrote full-time until her death at age 94.
At age 53, Lilian Jackson Braun published her first novel featuring a feline gumshoe. But her fourth was rejected because it didn’t contain sex and violence. She took a break and came back more popular than ever!