Joan Thesiger (1895-1971) (1895–1971) Parents Frances Thesiger, Viscountess Chelmsford Frederic Thesiger, 1st Viscount Chelmsford Children Caroline Lascelles John Lascelles Lavinia Lascelles Siblings Frederic Thesiger Andrew Thesiger, 2nd Viscount Chelmsford Anne Thesiger Bridget Thesiger Margaret Thesiger Partners Alan Lascelles