I'm sure you are correct - these names sound like surnames on the mother's side but of course she may not have come originally from Carnmoney. Your best bet is to troll all the names through Google plus either Antrim or Carnmoney. The N.Ireland telephone directory is on line - it used to be BT.com and was free. In the late 19th. C there was a wave of emigration out of the country areas to Belfast and England as well as America and Canada. The Belfast directories are found through lennonwylie.co.uk. and the 1901 and 1911 Censuses at sortedbyname.com There may be a Carnmoney web site and a heritage centre. Sometimes the names will turn up on the sites concerned with passenger lists to America, etc. I would think the gravestone inscriptions for the Carnmoney graveyards would likely yield useful clues. Obituaries printed in either the Belfast Telegraph or News Letter are often very useful.ai seem to recall Dunning in association with the Carnmoney district. It is not too common a name. Fragments of the 1851 Census for Antrim is on line and worth a try through Google as a long shot.