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The father of your Andrew Leckie, born 18 July 1731, wife Alice (don't have last name), is John Leckie, born 25 Nov 1705 in Glasgow, Lanark, Scotland. His wife was Agnes Craig, born 20 May 1708 in Glasgow, Lanark, Scotland.
By the way, Andrew had 5 children, not just 3. I wonder if possibly he'd been married twice since you say his wife's name was Mary and I say it was Alice.