(1766–1815), Bengal chaplain. After conversion and a period spent under the personal influence of the famous Evangelical, J. Newton, Buchanan entered Queens' College, Cambridge, in 1791, where he made the close acquaintance of C. Simeon. On being ordained priest in 1796, he accepted a chaplaincy in Bengal, proceeded to Calcutta shortly afterwards, and was for several years vice-provost of a cultural college which Lord Wellesley had established at Fort William. Though his official position in the East India Company restricted the amount of active mission work he could do, he used his influence to the utmost to further the cause of Christianity in native India; and it was largely through his instrumentality after his return to England (1808) that an episcopate in India was created, T. F. Middleton, the first Bp. of Calcutta, being appointed in 1814.
From The Oxford Dictionary of the Christian Church in Oxford Reference.