If you're a Presbyterian and you've never heard of William Henry Sheppard, that isn't surprising. But it is disappointing. He was a black Southern Presbyterian missionary to the Congo, who overcame prejudice and segregation to bring the gospel to the Congolese. At times perhaps he seems to have been more explorer and artifact collector than Christian missionary, but his impact on Presbyterian and world history was significant in both church and state. You can read his account of his missionary journeys here.