Many thaks for the reply. Here is what I have re his son William, who was Master of the Rolls in later life. I have plenty on James, but I need to certify that John was William's brother. Hence I need to trace the death of the father ie James and then see if John was born on the Isle of Man
Ed
"b. 13 Oct. 1752, 1st s. of James Grant of Hillockhead, Rothes, Elgin, later collector of customs for Isle of Man, by w. Christina. educ. Elgin g.s.; Aberdeen Univ.; L. Inn 1769, called 1774. unm. Kntd. July 1799.