John Hanning Speke although the pair seemed to have shared the hardships and labors of the journey pretty much evenly. Once it became clear that Speke might have found the source of the Nile the relationship deteriorated further. Why Burton did not journey back to Lake Victoria with Speke to make a better reconnoitre of the Lake after Speke returned to base camp in Kazeh is unclear. Burton was incapacitated and had to be carried by bearers but this had been true for a great deal of the trip. While Speke and Burton were instrumental in bringing the source of the Nile to
John Kirk (explorer) William Carnegie Kirk was author of "A British Garden Flora". The engineer, Alexander Carnegie Kirk, was John Kirk's elder brother. From 1858 to 1864 Kirk accompanied the explorer Dr David Livingstone on the Second Zambezi Expedition as a botanist and experienced his work to end the East African slave trade. He found Livingstone an inept leader and in 1862 wrote "I can come to no other conclusion than that Dr. Livingstone is out of his mind and a most unsafe leader"". In 1866 Livingstone’s began his next and final expedition, to find the source of the Nile, from Zanzibar. From