 William Petty's 1685 map depicts it as "Carnagh".In the Plantation of Ulster by grant dated 4 June 1611, along with other lands, King James VI and I granted the "two polls of Clonekarnehan to Callo O'Gowne, gentleman".The O'Gowne lands in Clontycarnaghan were confiscated in the Cromwellian Act for the Settlement of Ireland 1652 and were distributed as follows-

The 1652 Commonwealth Survey lists the proprietor as "Thomas Thornton" and the tenant as "Hugh O'Backaghan".