 His daughter Eileen became the first woman jockey to win an open race when she rode Hogier to victory in the Town Plate at Newmarket.His son Dudley Joel was elected the Conservative Party Member of Parliament for Dudley but was killed in action during World War II.Joel's brother Woolf Joel was murdered in Johannesburg in 1898, probably by a blackmailing con-man named Karl Frederic Moritz Kurtze going under the pseudonym of Ludwig von Veltheim.