When you see the certificate......if there is anything you aren't certain about, I would be ringing Registrars to see if they can explain fully who, what, why, where, when, how, and who........keep probling to see if you are given any type of clue that you may not be usually be expected to be told.
Contact more than one, you may get lucky....
Be a little like the police when questioning... A. B. C. Assume Nothing; Believe No one and Check everything.....Then double and triple check.
True foundlings could be very hard to impossible to trace years ago. It's only since D.N.A. became available to the masses that things improved.
LONG LOST FAMILY HAVE A SPECIALIST ATTACHED TO THE PROGRAMME ARIEL........ (?) SURNAME ESCAPES ME AT PRESENT, BUT CHECK LISTING....SHE WORKS FROM WARWICK UNIVERSITY.
it could be in your interests to contact her by email. I've contacted her in the past and she was quite helpful- but under a heavy workload.
Good luck with your research. Contact me if you think we may be able to have a mini think tank event and search outside the box for other avenues to explore. Cheers. Doreen PEACOCK.