William Dool Killen

Thomas Young Killen Moderator, in 1882, of the General Assembly of the Presbyterian Church in Ireland[1] was his father's great-nephew.

[2] After attending local primary schools, Killen went around 1816 to Ballymena Academy, and in November 1821 entered the collegiate department of the Royal Academical Institution, Belfast, under James Thomson.

He was in 1827 licensed to preach by the Presbytery of Ballymena, and on 11 November 1829 ordained minister at Raphoe, County Donegal.

In 1869 he was appointed president of the college, in succession to Henry Cooke, and undertook to fundraise for professorial endowments and new buildings.

His major works were:[2] He edited, with introductions and notes:[2] Killen took part in a bitter controversy concerning the relative merits of prelacy and presbyterianism, which was provoked by four sermons preached in 1837 in St Columb's Cathedral, Derry, by Archibald Boyd.