Jessamyn West wrote "The Friendly Persuasion". which was later made into a movie starring Gary Cooper. The novel and movie were about a peacer-loving family during the US Civil War. Who is her much more famour relative?

Former President Nixon was her cousin, I believe.

You got it, Colin.

Jessamyn West
1902-1984

West was born in Indiana on July 18, 1902, to a farming family of modest circumstances. She was related to Richard Nixon through her mother's family, and she became a close and lifelong friend of his, sometimes even travelling with the presidential entourage. - Jessamyn.com