 Clonmoyle Mill is not depicted on the 1841 surveyed OS Map, nor mentioned in Ordnance Survey name books, and would appear to be of later construction.It exists by the mid-nineteenth century, as the Primary Valuation of Ireland (Griffith's Valuation) records a Hamilton as occupier of a 'Flour Mill' in Clonmoyle, with the buildings valued at £34, and the Lessor being Jonathan Bruce.This is the same Jonathan Bruce who was then occupier of nearby Clonmoyle House, leased from Charles Colthurst.