A famed 19th Century journalist and thinker, Horace Greeley's life overlapped with two prominent Staten Island abolitionists. He employed Sydney H. Gay at the New York Tribune, and he appeared as a guest lecturer in a Lyceum Lecture series in 1859 hosted by George W. Curtis - see articles below. He also spoke at an AME Zion Church meeting. In addition, according to the obituary of Louis Napoleon, Underground Railroad conductor, he was one of the individuals who provided Louis with a pension when he retired.
Read about Horace Greeley at: https://tinyurl.com/ybbxqrwk.