Elizabeth,
I found Donald McAuley’s death in 1900 aged 84. His daughter Margaret was the informant. Presumably she moved over to Scotland soon after his death as she’s not in the 1901 Irish census. There was a regular ferry about twice a week from Ballycastle to Glasgow so a very easy journey. Folk went back and forth all the time:
https://civilrecords.irishgenealogy.ie/churchrecords/images/deaths_retu…
The Valuation revision records show his name deleted in 1902, so I realised it had to be around then. Griffiths clerks revisited every couple of years and their dates record when they learned of a change, rather than when someone actually died or moved. Katherine is a widow in the 1901 census (April 1901) I knew he presumably died just before that.
The location - plot 17A(a) - is shown as being near the gate house and cemetery. (Copy attached). That’s on the modern Glasmullen Rd, close to Kilmore Country House (originally known as Ballinluig). Plot 17 was Ballinluig House, so this was a cottage in the grounds somewhere. It’s probably no longer there. But you could stay in the big house.
https://kilmorecountryhouse.com
There are gaps in the parish records. Layde has records starting in 1838 but there are years missing. Katherine and Donald were born before the start of the parish records so you are not going to find a record of their births (nor is it going to be easy to get any further back).
I don’t see their marriage either so presumably it was in one of the gaps in the records. There’s a huge gap between 1844 and 1860 so that looks to cover the likely timing, doesn’t it?
https://www.johngrenham.com/records/rc_church.php?county=Antrim&parish=Layde&churchid=383
I had a look to see if I could find anything on Hugh & Daniel (junior). There are no deaths or marriages for either in the Layde area up to 1902 so suspect both moved away from Ireland. Possibly to Scotland because that's where so many went but without any clues they may be hard to trace.
If you are looking for some general background on your McAuley and other ancestors, a book you might find helpful is Brian S. Turner’s “Family names in the Glens of Antrim.” (See attached image). McAuley gets about 10 pages to itself, and the book is littered with references to them. In 1963 it was the most common surname in the Glens. Most of them appear to have come over from Scotland in the 1600s or earlier. They seem to be associated with the McDonnells (MacDonald in Scotland) who came over from Islay in the 1500s. Islay is the island north of Ballycastle, beyond Rathlin. It’s about 25 miles away and is easily seen on a good day. There are 3 famous distilleries along the bottom coast of Islay which have all helpfully been painted white and they stand out easily. But if you are interested it explains the background in the book. There are various references to Kilmore too. (Haven’t looked them up so don’t know what. Probably to the McDonnells of Ballinluig House).