Inscribed on the front free endpaper (Religion and Conscience in Ancient Egypt (1898) by W. M. Flinders Petrie.) 'Lady Betty Balfour with Wm. Flinders Petrie's best regards'. Lady Elizabeth Edith "Betty" Balfour (1868-1942) was the wife of Gerald William Balfour, 2nd Earl of Balfour PC (9 April 1853 – 14 January 1945), known as Gerald Balfour or Rt Hon G. W. Balfour until 1930, was a senior British Conservative politician who became a peer on the death of his brother, former prime minister Arthur Balfour, in 1930.