Not sure where that information is coming from Dave, but it wouldn't be accurate. The majority of headstones in Tydavnet Old Graveyard are Catholic, mirroring the religious makeup of the parish through the years, where the majority of the population was Catholic, and the various Protestant denominations were in the minority. Many of these Catholic surnames are still common in the Parish, some families are even still resident in the townlands mentioned on memorials. However, the gap between the years of the memorials and the available written records makes research difficult, if not impossible in many cases! Most Church of Ireland (Protestant) burials finish at Tydavnet Old Graveyard once the new C of I parish church was built in the nearby village of Ballinode around 1755, and people of that faith were buried at Ballinode. Presbyterian burials in the Tydavnet Old Graveyard may have continued into the 19th century, as the closest Presbyterian graveyard in Scotstown village didn't come into operation until around the mid 1800's.  Anyone interested in Tydavnet Old Graveyard should consult the article by Rev Bernard O'Daly in the Clogher Record,  Vol. 1, No. 2 (1954), pp. 43-55 and his excellent work of transcribing the 200+ memorials. And of course the graveyard itself is well worth a visit in person - although the inscriptions on the headstones can be very difficult to make out. Which makes the work of O'Daly and the modern day mapping/signage all the more valuable! Regards, Seán