Hi Frank Trillick is certainly in Co Tyrone. I checked out Cabragh on PRONI site to make sure and it is listed as being in Kilskeery Parish in Co Tyrone. However when I googled 'Cabragh, Trillick' I got a link to a planning application for Cabragh under Co Fermanagh. Because of this I checked the 1901 census index for Co Fermanagh but they are not on it. I dont have access to the Co Tyrone index, unfortunately. Cheers Theresa