Henry Morton Stanley the source of the Nile. Between 1875 and 1876 Stanley succeeded in the first part of his objective, establishing that Lake Victoria had only a single outlet – the one located by John Hanning Speke on 21 July 1862. If this was not the Nile's source, then the massive northward flowing river called by Livingstone, the Lualaba, and mapped by him in its upper reaches, might flow on north to connect with the Nile via Lake Albert and thus be the primary source. It was therefore essential that Stanley should trace the course of the Lualaba downstream (northward) from Nyangwe,
PS Speke "Speke" and her barges were used mainly to carry cotton for export from nearby plantations. When the railway operator's successor, the East African Railways and Harbours Corporation (EARH), completed its northern Uganda extension from Tororo to Pakwach it superseded the Victoria Nile ferry service. EARH withdrew "Speke", "Stanley" and "Grant" from service in 1962 and offered "Speke" for sale in September of that year. The track of the Busoga Railway was lifted in 1964. PS Speke PS "Speke" was a British stern wheel paddle steamer in Uganda. She was built for the Uganda Railway in 1910 to operate on Lake