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.
Alfred Gwynne Vanderbilt II Alfred Gwynne Vanderbilt Jr. (September 22, 1912 – November 12, 1999) was a member of the prominent Vanderbilt family, a son of the first Alfred Gwynne Vanderbilt, who died a hero in the sinking of the RMS "Lusitania". His mother, Margaret Emerson (daughter of the Bromo-Seltzer inventor Isaac E Emerson), was one of America's wealthiest women and most sought-after hostesses, operating at least seven large estates around the country. His grandfather, Cornelius Vanderbilt II, had been one of America's most revered businessman; his great-grandfather, William Henry Vanderbilt had been the richest man in the world. "Commodore" Cornelius Vanderbilt started the family fortune in shipping and railroads as the founder of the New York Central Railroad and builder of Grand Central Terminal in New York.