Geoffrey G. Butler is the uncle and mentor of a man who was a prominent what?
Geoffrey G. Butler Sir George Geoffrey Gilbert Butler (15 August 1887 - 2 May 1929) was an English historian, academic and politician who served as a Member of Parliament for Cambridge University, 1923–1929. He was uncle of and mentor to Rab Butler, and was an early sponsor of Liddell Hart, a former student who would upon the senior Butler's death that 'I have never had a better friend, in every sense of the word’. An avid Conservative, he was a significant figure in the intellectual and political history of his party between the World Wars. In April–May 1917 he was a member of the Balfour Mission, intended to promote cooperation between the US and UK during World War I.
Richard Butler (Australian politician) Sir Richard Butler (3 December 1850 – 28 April 1925) was an Australian politician. He was a member of the South Australian House of Assembly from 1890 to 1924, representing Yatala (1890-1902) and Barossa (1902-1924). He served as Premier of South Australia from March to July 1905 and Leader of the Opposition from 1905 to 1909. Butler would also variously serve as Speaker of the House of Assembly (1921-1924), and as a minister under Premiers Charles Kingston, John Jenkins and Archibald Peake. His son, Richard Layton Butler, went on to serve as Premier from 1927 to 1930 and 1933 to 1938.