Person DS/UK/2416 Cavendish; William John Robert (1917-1944); Marquess of Hartington; Heir to Chatsworth estate; killed in World War Two. Married Kathleen Kennedy, daughter of Joseph Kennedy and sister of John F Kennedy. Known as Billy. Cavendish William John Robert 1917-1944 Heir to Chatsworth estate; killed in World War Two. Married Kathleen Kennedy, daughter of Joseph Kennedy and sister of John F Kennedy. Known as Billy. Cavendish, Billy

International Standard Archival Authority Record for Corporate Bodies, Persons and Families - ISAAR(CPF) 2nd edition - ICA 2004 ISBN 2-9521932-2-3 National Council on Archives, Rules for the Construction of Personal, Place and Corporate Names, 1997 Yes A7003503 02/09/2016 A7003503 02/09/2016 3c4ff1e5-5ac2-4c30-98c1-338de4b6c7b1