Chatteris - now there is a town - the former Mrs W started her teaching career there in the 60s - what an education to me from norf west Lunnun. most of the kids were out of school most of the summer harvesting. I suspect a fair few had more than the usual number of toes. Accents were so broad as to be almost unintelligible. There is a "fenland" ie Marais Poitevan - town between us and La Rochelle (fens here drained by same Dutch engineer as Cambridgeshire) called Marrans - every time I drive through I am reminded of Chatteris and its near neighbour, March.