The graveyard is in current use and has around 200 graves.
The ancient church of Rathmesk (which provided the Parish of Magheramesk with it's name) more commonly known as Trummery Old Church. Rathmesk was recorded as being in existence in 1210 and a ruin in 1622. A large funeral mount stood north of the church for around 300 years however, it was leveled in the nineteenth century. There also once stood a round tower attached to the church which had the same diameter all the way to the top. Records indicate it was 60 ft high and 15 feet in diameter. (A topographical dictionary of the British islands by James A Sharpe Pub 1852) Tradition says English soldiers in 1642, probably in the nearby Fort of Innisloughlin, used the ancient round tower as a target for cannon fire. (1832 Ordinance Survey) A great breach was made in the side next the church, but only in the outer half of the tower wall. Another article continues "Nature, as if willing to hide the breach from the eye of the curious, bestowed on it a luxuriant covering of ivy, which gave it a truly romantic appearance. Upwards of thirty years since some person wantonly destroyed the roots of this plant and this once venerable monument of antiquity became a mass of ruins." (Illustrated Dublin Journal, 1862) Parts of the tower were removed previously as building material. The ruins were flattened in 1828, and nothing but scattered fragments remain. The tower had been erected over sepulchral chamber in which human remains were found. When the Ulster Railway was being built, great quantities of bones were discovered in the cutting close to the ruins of the Old Trummery Church and Tower. It is quite likely that they are those of men and horses killed in the battle [of Moira in 637 AD]. The battle was between Domhnall, High King of Ireland and Congal Cláen, King of Ulster.