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,
John Speke (1442-1518) John Speke (1442-1518) Sir John Speke (1442–1518) of Whitelackington, Somerset and of Heywood in the parish of Wembworthy and of Bramford Speke both in Devon, was Sheriff of Devon in 1517 and a Member of Parliament (1477). He was knighted in 1501. His monument is the "Speke Chantry" in Exeter Cathedral in which survives his recumbent effigy. He was born in about 1442, the son and heir of Sir John Speke (died 1444) (buried at Bramford Speke) of Wembworthy and Bramford Speke, Devon, by his wife Alice Beauchamp (died 1445/46) (who survived him and remarried to Henry Hull) daughter and