[Merry]

It wouldn't be the first time someone has married under a different surname than you might expect! (ie William Duke, carpenter might actually be William Martin - scuppering my theory completely! lol). I have seen examples where every GRO entry is in one surname but every census record is in another for instance. Sometimes it's to do with copyhold land entitlement, but more often just because somewhere along the line there's been an illegitimate birth and a family has been brought up with the 'wrong' surname (and used in everyday life and on the census) but they use what they see as their lawful surname on more official records! Lots of other variations on this theme too. Obviously they didn't consider family historians at all! lol