James “Jimmy” Watts (1878 - 1957) was the husband of Madge Miller and the father of Jack Watts. He was the brother-in-law of Agatha Christie. Christie dedicated her novels The A.B.C. Murders (1936) and Hercule Poirot's Christmas (1938) to him. Retrieved from "https://agathachristie.fandom.com/wiki/James_Watts?oldid=16296" Categories: Family Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.