Gathorne Gathorne-Hardy, 1st Earl of Cranbrook
United Kingdom of Great Britain and Ireland
John Gathorne-Hardy, 2nd Earl of Cranbrook
Member of the Privy Council of the United Kingdom
Brockhaus and Efron Encyclopedic Dictionary
Dictionary of National Biography, second supplement
Gathorne Gathorne-Hardy, 1. Earl of Cranbrook
National Library of Israel Names and Subjects Authority File