Now I'm confused. I added Neil MacLeod to my tree on ancestry and went to search for records. There are marriage records for a Neil MacLeod living in Saingo, Sutherland, Scotland in 1772 and Isobel is the wife. Then there is another record, same place in 1775 and the wife is Janet. The records are from the parish. Also, many, many of the trees there have Donald as the father with many kids and one is Kenneth. Catherine MacDonald is his wife. Marriage, Isle of Skye, 1769. And Donald dies 1830 in Durness. I don't want to monopolize your time but you've been most helpful.
Another tree has their marriage date as 7 June 1775 at Balamhulich, Sutherland, Scotland.