Robert Morrison (1782-1834) was the first Protestant missionary to China. He began studying Chinese along with theology and medicine as a student in Northumbria, England. In 1807 the London Missionary Society sent him to Canton, China.
David Livingstone (1813-1873) was a renowned missionary and explorer. He grew up in Glasgow, Scotland in a poor family. He studied on his own and was able to enter the University of Glasgow in 1830 where he earned degrees in theology and medicine.
Adoniram Judson (1788-1850) was born near Malden, Massachusetts. He was the son of a Congregational minister. He graduated from Brown University and studied for a time at Andover Theological Seminary.