My great aunt (by marriage??) was Jane Stewart, from Makerry, Fermanagh/Tyrone border. I cannot find a marriage cert for her and Timothy Kearns from Sleaty, Queens County, (now Laois) in Ireland, but they lived there for some time. They had two children registed in Graiguecullen parish church, James born October 1894 and Timothy who was born December 1895. They are in the 1901 census at 1 Cartburn St. East Greenock, Renfrewshire along with another son John born in 1899 in Co Fermanagh. Timothy Junior changes his name to James Cairns and he married Annie Livingstone on 26/9/1915 in St John Church, Portugal Street, Glasgow. Her parents are listed as Alexander and Mary (nee McNally) Livingstone. Witnesses were Edward Murdoch and Maggie Hughes. They both gave their address as 50 Commerce Street. Glasgow. James death cert is registered 8/6/1955 at Royal Infirmary, Portland Street Glasgow. The death was registered by his son T. Cairns and the given address was 580 Old Shettleston Road, Glasgow. If any of this fits in with your family line, it would be great.
Why would they have changed the spelling to Cairns, although I know the Scottish pronunciation of Kearns and Cairns is similar? What about his brother John, did he also change his name? I am researching from Ireland so accessing information is not always easy. Any help with this would be greatly appreciated.