Thank you elwynsoutter1 for your reply! The Griffith's Valuation had been accessed and the 3 William Colquhouns noted, however, you have expanded my knowledge about each of them by interpreting the Griffith's Valuation - again thanks - it was most confusing to me. I, too, expect the families may have been Presbyterian. Yes, spelling variations have been checked out as well. PRONI will need to wait until I can get over to Ireland again although I do check the website from time to time. Merry Christmas!