Thomas Killen was born in Ballymena, County Antrim, and was educated in Belfast. He was ordained a Presbyterian minister in Ramelton, County Donegal, and came to Belfast in 1862, where he built up a large congregation at Duncairn. He edited the Evangelical Witness for four years and was Moderator of the General Assembly in 1882, gaining a Doctorate of Divinity in 1883.

Born:	30 October 1826
Died:	21 October 1886