Born: October 10, 1822, Salem, Massachusetts.
Died: February 19, 1882, North Andover, Massachusetts.
Buried: 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: