David Welsh was born in Moffat, Dumfriesshire on 11 December 1793 and died in Edinburgh on 24 April 1845. He entered Edinburgh University in 1806, and three years later attended Thomas Brown's lectures in moral philosophy. The professor and his pupil became close friends, despite differing about the proper character of the Christian religion. Under Brown's influence, Welsh developed a serious and long-lasting interest in phrenology, which he is reported to have been concerned to rid of its materialist connotations. He commenced the study of divinity in 1811, but it was not for ten years that he obtained his first ministry, at Crossmichael. His sermons show him to have been an evangelical preacher from the same mould as his friend Thomas Chalmers. In 1827 he was invited to move to St David's, Glasgow; but in 1831 he moved back to Edinburgh, to take up the university's Professorship of Church History.
From The Continuum Encyclopedia of British Philosophy in Oxford Reference.