"Colray" sometimes "Colrey" is really bugging me because it is a place I have heard of but cannot locate. I don't see a "township of Ross in Sligo" and I do not know whether she would be R.C. or Church of Ireland and so, without knowing your 2G Grandmother's name, this is where I would have a look -
:The Roman Catholic Diocese of Elphin in Sligo
:The R.C. parish of Coolery, or Coolry
:Rosses Point
Which is on the western side of the civil parish of Calry, on the north side of Sligo Harbour.