In 1929 Lady Fairhaven and her sons bought the historic Runnymede Meadow, with adjoining lands totaling 182 acres , twenty miles (32 km) southwest of London, and presented it to the National Trust "to preserve for ever the site where Magna Carta was signed and to honour the memory of the late Mr Urban Hanlon Broughton, husband of Lady Fairhaven and father of Lord Fairhaven and Captain Broughton".