Thanks to all for those swift replies.
Yes Shaun, I puzzled over that letter for a while, but it is similar to that taught at my junior school for "Q" in so called double writing.
Quorum is or was how to pronounce Quernhow, I never thought that could be so. I thought it might be Coverham (Cov'rum), but those of that name from there were all found later in other places. I'd researched both Quernhows from afar, being about the only place in Yorkshire I found beginning with "Q", but couldn't think anywhere ending in "how" could be pronounced "rum".
Looks like I'll need to find the records for baptisms at St Mary's, Wath and All Saints', Pickhill and next time I drive down the A1, stop and find ask a local what the place is called.
Many thanks,
Eric.