Born: October 15, 1841, Troy, New York.
Died: March 10, 1906, Chester, Pennsylvania.
Buried: Oakwood Cemetery, Troy, New York.
Johnson was the husband of Mary Anna Lyon.
He was educated at the University of Rochester (BA in Philosophy and Letters, 1862), then studied part time at the Rochester Theological Seminary (1862–64).
He served as an American naval officer (1864–66), then entered the Baptist ministry in 1866. He served a pastorate in Le Sueur, Minnesota (1866–68), then returned to Rochester Theological Seminary, where he graduated in 1871.
He spent two years traveling in Europe, the Holy Land and Egypt, after which he pastored in Ballston, New York (1875–83).
From 1883 until his death he was professor of systematic theology at Crozer Theological Seminary, Chester, Pennsylvania.