John Munro married to Janet Gun in 1714
John, who entered the Church and was admitted Minister of Halkirk, County of Caithness, before the 2nd of August 1706. He died on the 17th of April 1743, having married Janet, only child and sole heiress of George Gun Munro of Braemore, with issue, besides several daughters: (a) John Gun Munro I, of Braemore, (b) George Gun Munro I, of Poyntzfield, (c) Henry who died without issue, and (d) William, who married Mary, daughter of Sir George Sinclair of Clythe
So after 1714 Munro became Gun-Munro and Gun Munro
There is a lot more... Soon. Jason