Percy married Elizabeth Juliet Powell on 16 Apr 1931 in St Michael, Chester Square, Westminster, London, , England. Elizabeth (daughter of Sir Douglas Powell, 2nd Bt of Wimpole Street and Albinia Muriel Powell) was born on 24 Mar 1905 in Sharow Hall, Sharow, Ripon, , Yorkshire, England; was christened on 23 Apr 1905 in Sharow, Ripon, , Yorkshire, England; died on 20 Apr 1956 in The London Clinic, 20 Devonshire Place, Westminster, London, , England. [Group Sheet] [Family Chart]