John Kirk (explorer)

Sir John Kirk GCMG, KCB, FRS (19 December 1832 – 15 January 1922) was a British physician, naturalist, companion to explorer David Livingstone, and a British administrator in Zanzibar, East Africa, where he was instrumental in ending the slave trade in that country, with the aid of his political assistant, Ali bin Saleh bin Nasser Al-Shaiban, and Alexander Mackay, a missionary in Zanzibar.