John Henry Leslie, Dictionary of National Biography… (1912)
“ Repeated requests had been made by the King of Swaziland that his country should be taken under the protection of the British government, owing to the aggressive attitude of the Boers, but the government had declined to interfere. Left to themselves, the Boers gained virtual possession of the pastoral resources of Swaziland, In 1889 De Winton was sent as a commissioner to Swaziland, with instructions to hold an inquiry into its affairs in conjunction with a commissioner of the South African republic. ”
