Thanks to the diligent researches of John Brechin in the archives of St Nicholas Episcopal church in Aberdeen, it’s now possible to confirm the details of Rev. William Robb’s death.
It appears that William, ‘late Episcopal Clergyman, in St. Andrews’, died at Chapel Street, Aberdeen on 19th February, 1830, age 67 years. The cause of death is given as ‘paralysis and mental disease’.
Knowing William’s age at the time of his death enables us to be fairly sure that he is the William Robb, son of George Robb, who was born in Auchterless in 1763.