« Reply #3 on: Tuesday 14 June 11 19:17 BST (UK) »
Have you looked at the ever growing sites of Donkipedia ( Guernsey) and Jerripedia( jersey ) There are loads of family trees there to download if you are lucky with the surname. I'm sure De Gruchy would be there as it is on of the more common names.
Ringrose
Mann Ringrose Prior( West London)Prior (Halstead Colchester and Sudbury)Ringrose (Northants) Clark(sussex Bath)Light(Shropshire West London)Barber(Northants)Gaudern (Northants)Piper(Suffolk)Carter (Essex)Nightingale,Stiles,Dunk,Hedgecock(Kent)Mann(south Devon )Le Cronier,Le Quesne,Poingdestre,Esnouf,Le Guyt,Anley.Le Carteret(Jersey)Clark(Bath,Batcombe,and Nyland )
er(essex)Nightingale(kent Sussex)Sutton (sussex)