Found this in the April 18, 1875 issue of the New York Times. Christopher Rush was a prominent member of the African Methodist Episcopal Church organization and was a historian, writing a book about the group in 1866 called A Short Account of the Rise and Progress of the African M. E. Church in America. The book is available online as part of the Documenting the American South collection from the University of North Carolina @ Chapel Hill.
Article Title: Centenarians; Authenticated Cases of Extraordinary Longevity. Persons Who Have Lived for a Century.
Christopher Rush, colored, born in Craven County, North Carolina in 1777, died in this City of senile asthenia July 16, 1873. He was brought to this City as a slave in 1798, and gained his freedom about the year 1812. He joined the African M.E. Church in 1803, was licensed to preach in 1815, ordained in 1822, and elected Bishop of the church in 1828. He lost his eyesight in 1859, and in 1868 became subject to fits at intervals of from one week to two months, which greatly impaired his memory, and continued until his death. Frugality in his earlier years enabled him to save enough money to make him independent, so that he lived comfortably in his old age. He was a hearty eater, very fond of coffee, which he drank a great deal, and was an inveterate tobacco smoker. He was naturally robust and healthy, and drank no liqour stronger than cider.