October 10, 1822, Salem, Massachusetts.
February 19, 1882, North Andover, Massachusetts.
Harmony Grove Cemetery, Salem, Massachusetts.
Johnson attended Harvard University, where he graduated in Arts, 1842, and in theology, 1846. In 1853, he formed a Free Church in Lynn, Massachusetts, where he served as pastor until 1870. Though he was never directly connected with a religious denomination, the public associated Johnson with the Unitarians. With Samuel Longfellow, he co-edited: