Richard Allen

Converted early, Richard Allen joined the Methodists at age 17. He began evangelizing and attending services so regularly that he attracted criticism from local slave owners. Allen was qualified as a preacher in 1784, at the first conference of the Methodist Church in North America, in Baltimore, Maryland. He was allowed to lead services at 5 a.m.
 
In 1786, Allen became a preacher at St. George's Methodist Episcopal Church, in Philadelphia, Pennsylvania, but was restricted to early morning services. As he attracted more black congregants, the church vestry voted to build a segregated gallery for the use of blacks. Allen also regularly preached on the commons, slowly gaining a congregation of nearly 50, and supporting himself with a variety of odd jobs. Allen became the first black Methodist minister, ordained by Bishop Francis Asbury, in recognition of his leadership and preaching.
 
—Excerpted from Wikipedia