you could send them to the local family history society and they would advertise them in their quarterly journal, find the correct branch here:
http://www.ffhs.org.uk/
I know there used to be one in Doncaster because they helped me out once, my great grandfather was born there.
when ordering a certificate you can send any facts/expected content as an indicator to the registrars that you have ordered the right certificate, they will usually advise you if the details they find seem to be off track.