Thank you Yvonne for adding me. Here is the marriage certificate for my great-grandfather Samuel Boyd who married Rachel Kane in 1865. Many thanks to Yvonne for finding this for me on irishgenealogy. It shows they both lived in Gloonan townland near Ahoghill about 3 miles from Ballymena, were Presbyterian and Rachel's father was John Kane a flaxdresser. 

Samuel and Rachel moved to Larne and had a son called Alexander who married Selina Hannah. In 1900 they had a child called Elizabeth, my paternal grandmother. I have researched the Hannahs with interesting results and hopefully will be now be able to find out more about the Kanes in particular.