North - Traded under the Swahili name of 'Yumbe Mugia'; dep. GEA coast with caravan Jan 1898; partner with Sixdorf in trading firm of Köther & Sixdorf in GEA and Uganda 1899; travelled to Baringo & Lake Rudolf area eventually arriving at Ravine where a quantity of immature & cow ivory was confiscated 15-1-1900; arr. Kisumu from Railhead 22-2-1900; transport contracting for UP in the Ravine area before June 1900; Still in dispute with UP over confiscated ivory Nov 1901; running boarding house in Zanzibar 17-8-1904; Mrs Köther (possibly Hilda) & child dep. Zanzibar for Europe 10-7-1905