William Robertson(1839-1892), the leader of the expedition (wrongly called ‘James’ in the Note quoted above), was an Australian by birth, and the first non-British national to take part in the Oxford and Cambridge Boat Race. He later became a barrister and member of parliament in Australia. He and H.J. Chaytor (possibly the father of the medievalist Henry John Chaytor) were both members of the victorious Oxford team in the 1861 Boat Race. James Surtees Phillpotts (1839-1930) was the third member of the team; he would later become headmaster of Bedford School. The trio had three Swiss guides, Peter Baumann, Peter Kaufmann (""Grabipeter"", father of Peter Kaufmann the younger) and Rubi.