Astronomer, born on 8 April 1815 in Co. Fermanagh, to Anglican parents. As a boy he attended the parish church and WM Sunday School. Originally in charge of the Primate School, Armagh, he turned to theoretical astronomy and was trained in the use of a meridian circle at the Armagh observatory. He worked for eleven years at the Markree observatory, whre in 1848 he discovered the ninth Minor Planet, which he named Metis. In 1860 he was recruited by John Couch Adams to undertake the routine side of the work at the Cambridge observatory. He worked there assiduously for 39 years, with few vacations, until his retirement in 1903 at 88. In 1883 he achieved a Cambridge MA. He contibuted to the 'Astronomiche Gesellchaft' (Leipzig, 1897), giving the position of 14,000 stars. A staunch Wesleyan, he spent his leisure in chapel activities and was a local preacher. He died at Maid's Causeway, Cambridge, on 5 November 1908.