A major 19th-century reformer and intellectual, Alexander Crummell (1819-1898) was the first black American to receive a degree from Cambridge University. Upon graduation, he sailed to Liberia, where from 1853 to 1872 he worked as a farmer, educator, small business operator, and Episcopal missionary. Returning to America in 1873, he established St. Luke's Episcopal Church in Washington, D.C., serving as its pastor until 1894. Crummell remained active...