At the end of his short life Soga was sent to open a new mission station in Tutuka (Somerville) in Kreli's country and the difficult work further deteriorated his health. It was the desire of Soga that his children be educated in Scotland and before his death instructed his sons, "For your own sakes never appear ashamed that your father was a "Kaffir" and that you inherit some African blood. It is every whit as good and as pure as that which flows in the veins of my fairer brethren…you will ever cherish the memory of your mother as that of an upright, conscientious, thrifty, Christian Scots woman. You will ever be thankful for your connection by this tie with the white race".