 Montgomery led a secession which formed (1830) the Remonstrant Synod of Ulster, comprising three presbyteries.In 1910 the Antrim Presbytery, Remonstrant Synod and Synod of Munster united as the General Synod of the Non-subscribing Presbyterian Church of Ireland, with 38 congregations and some mission stations.Till 1889 they maintained two theological chairs in Belfast, where John Scott Porter (1801–1880) pioneered biblical criticism; they afterwards sent their students to England for their theological education, though in certain respects their views and practices remained more conservative than those of their English brethren.