A marriage has been proposed for Archibald Alexander of Ballbiglimore and Elizabeth McKay, daughter of John McKay of Braegul, but evidence of the marriage has not been found. Certainly, no mention of it is made in Stirnet's report on the McKay family.
https://www.stirnet.com/genie/data/british/mac/mackay02
Can anyone provide a verifiable source reference for the proposed marriage