This new book by Laurie Graham is a fictionized account of being a nanny from 1917 on with the Kennedy family. The story is told from the nanny's point-of-view, and it makes for a fun read. I don't know how much of her "observations" are real or imagined, but I think much of the narrative is based on some truth.

http://www.amazon.com/Importance-Bei...7229186&sr=1-1