you can always contact me via manxnotebook (my site) - post revestment (probably worthwhile reading around this subject) Westminster kept all preRevestment officials in post (tho slowly replaced them later ) but replaced all customs collectors - your James would appear to one of the 'new brooms' - Derbyhaven was probably the smallest of the ports in terms of goods (way behind Douglas, Ramsey + Peel) but covered Castletown (whose own harbour was very poor) the then Island capital and wasn't that heavily into smuggling thus suspect rather a sinecure.