 Not long after leaving the Antrim post Cahill joined up with the Armagh senior hurling team.He joined as part of manager Michael Johnston managerial backroom team.Ordnance Survey Memoirs of Ireland

The Ordnance Memoir of Ireland was a projected 1830s topography of Ireland to be published by civil parish alongside the maps of the Ordnance Survey of Ireland using materials gathered by surveyors as they traversed the country.