James Buchanan (1804-1870), minister and theologian, was ordained in the Church of Scotland in 1827. In 1828 he commenced a very successful ministry at North Leith where he gained a great reputation as an earnest and eloquent preacher
of the Word of God. In 1845 he was appointed to the Chair of Apologetics at New College, Edinburgh, and in 1847 he succeeded Chalmers as Professor of Systematic Theology. He retired in 1868 and died two years later.
His two most notable works were
The Office and Work of the Holy Spirit and
The Doctrine of Justification.