Benjamin Worsley, the Surveyor General, had made a survey in 1653, which was notoriously erroneous.
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The Down Survey of 1655–6 was a measured map survey, organised by Sir William Petty, of the lands confiscated.
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Down Survey -William Petty's survey of Irish land and population before the Cromwellian Plantations
Thomas Taylor, founder of the Bective family, who worked with William Petty in compiling the Down Survey of Ireland, was interred here in 1682.
On the 1609 Ulster Plantation map it is named ‘Claghan’ (Gaelic ‘Clochán’ meaning a small beehive-shaped stone house), but by the Down Survey of 1655 it was merged into Mullaghduff townland where the combined townland was called ‘Mullaghduffe alias Cloghane alias Cornerin’.