1827, Allentown, Pennsylvania.
1894, Philadelphia, Pennsylvania.
Long began his college career in 1843 at Lafayette College, Easton, Pennsylvania, then entered the junior class of Marshall College in 1847, graduating in 1848.
He also graduated from the Theological Seminary at Mercersburg. He received the degree of A. M. in 1851 from his alma mater.
He served in both the Presbyterian and Reformed denominations. He was the agent for the American Tract Society (1852–58), and superintendent of the Union Tabernacle in Philadelphia (1858.)
His works include: