CROGHAN a village on the mutual border of the parishes of Killukin and Killumod, Barony of Boyle, Co Roscommon, Connaught. It stands on the road from Boyle to Strokestown, about halfway between Boyle and Elphin. It crowns the summit of one of the many ridges which the road traverses; and consists of about a score or upwards of tolerably good cabins and small houses. Croghan House, in the vicinity is the seat of Guy Lloyd Esq. and Englishman, one of the most improving landlords of the county and the proprieter of an estate which extends hence nearly to Carrick-on-Shannon. "If" said Mr Weld in 1832, "a position be taken on an eminence near the village, which extends an extensive view, on looking eastward along the road leading to the Shannon, the whole country as far as the eye can reach in that direction appears studded with whitened cottages. These are the erection of Mr Lloyd: in other words, he insists upon imporovements being made by his tenants and grants a considerable allowance for the purpose out of their rents."
Fairs are held on the Wednesday after Trinity Sunday and on Oct. 28. The dispensary of Croghan is within the Boyle Poor-Law_Union and has a district of 15,341 acres, with a population in 1831 of 8,210 and in 1840-41 it expended £83 12s 5d and made 1,707 dispensations of medicine.
A place of some antiquarian interest which has been erroneously identified with Croghan [i.e. royal residence and ancient capital of Connaught] and which is really situated in the barony of Roscommon will be noticed under the word RIAGH-CROGHAN [Rathcroghan]. Pop. not specially returned.
Excerpt from "The Parliamentary Gazetteer of Ireland: Adapted to the New Poor-law, Franchise, Municipal and Ecclesiastical Arrangements, and Compiled with a Special Reference to the Lines of Railroad and Canal Communication, as Existing in 1814-45" (pub. 1846)