she joined her husband in a rented property at Buncrana but died there a month later, aged 40. There were no children of the marriage. A little over a year later, Ogilby remarried. His second wife, Adelaide Douglas, was a daughter of the local Rector at Donagheady, a niece of the Earl of Morton and a cousin of the Marquess of Abercorn. For the next twenty years Ogilby led the life of a resident Irish squire. He was commissioned a captain in the Royal Tyrone Militia in 1851, served as High Sheriff of County Tyrone in 1852 and enlarged his landholdings by purchase of a further 2,900 acres near Omagh for £30,500 in 1853. A county magistrate by 1854, he was appointed a Deputy Lieutenant in 1863. In the 1860s he considerably enlarged Liscleen Lodge, the house he had first built on his estate, transforming it to become Altnachree otherwise Altinaghree Castle. This extravagant structure, built with cut stone brought from Dungiven, resembled a castellated factory but became, albeit briefly, an attractive entertainment destination for fashionable Irish society. For some years Ogilby and his family seemed well settled in County Tyrone. He lectured to the Omagh Literary Society, served as President of the Donagheady and Leckpatrick Farming Society, ran a successful home farm, won prizes for his short-horned cattle in National and Ulster shows, and engaged in extensive tree-planting. His plantation of deodars, covering 11 acres, was said to be the largest in Europe. However, in 1872 he discontinued farming and relocated his family to Dublin for the benefit of his children's education. Astronomy, faith and death Latterly he gave his attention to astronomical matters. In 1868 he delivered a paper "On the Motions of the Moon" to the Royal Irish Academy, and in 1872 he published A New Theory of the Figure of the Earth in which he declared that, in pre-spheroidal form, the planets "revolved in their orbits for countless ages before they began to rotate normally about their axes". In A New Theory he confirmed his belief in a divine creator of life, damning the "ignorant attempts which have been made to substitute a godless Pantheism for both natural and revealed religion; to dissociate the universe from its Creator, and resuscitate the defunct Goddess of Reason which the indignation of outraged society dethroned and buried some eighty years ago". He regarded the capacity for species to evolve