Thanks, Scotmum,
And just to say that a member of the current living DYNES family very kindly sent me about 6 female DYNES births from his tree for the 18thC, but unfortunately none of them would quite fit a woman with that family name marrying my ancestor James KERSHAW in the late 1740's/1750.
I feel I'm getting closer, though!
keith
p.s. Though I've just had another look at the e-mail I mentioned above, and they are all baptisms, not births. Not unheard of someone being baptised shortly before being married, I suppose...