Firstly to 'sam'.....this question is about 'BSE' (Baby Scoop Era)closed records, not about today's records. I am a BSE mother (1964) and one's social security number was not used back in the old days for indentifying reasons as it is today, not even on hospital or adoption agency records.
To answer the question above..yes, your adoption would be 'legal' in those days...maybe not so much in current days. For those able to get a hold of agency records, 99% of the time the recipient receives the 'sanitized' (whitewashed) version. I imagine before they sent these records out to you much 'proof-reading' was done. Also more times than not, the adoption was finalized in the county of residence of the adoptive parents. Maybe your amother, at the beginning, by wanting the adoption finalized in your county of birth, was thinking she could pass you off as the child born to her? Hence the worry of the 'idol tongue'?? Just a thought.
As to who paid what during the BSE.....my mother paid my hospital bill in full, BEFORE I even gave birth. I know because she gave me the money to pay the hospital on one of my pre-natal visits at the hospital clinic. Adoption of my child at that point in my pregnancy, was not a foregone conclusion/decision in my mind nor my mother's. The hospital Social Worker though had other ideas for my baby. My mother had paid for a 'ward', but upon admission I was given a 'private room'. I know this now, because I now have my hospital records and non-id info. I was not allowed to name my baby when I was still her one and only lawful mother. But on some of the paperwork, when my baby was about 2 wks old, evidently she was in 'fostercare', (something I never knew!) and the fosterers had named her, because that first name appears on her 2 week check-up. That pissed me off...I was told, the mother of my child, I could not name her...but temporary fosterers were given that privilege.
Back during the BSE parents of the pregnant young woman also paid for the maternity home expense, from several hundred dollars to a few thousand. Many a maternity home also elicited nice 'donations' from the apars for the 'gift' of 'the baby'. So I imagine...'donations' were also welcomed by adoption agencies...being that so many back then were religiously affiliated with the major religions of the day. There were also private maternity homes....where individuals set-up their homes as maternity homes, who were in nefarious league with doctors, adoption lawyers, adoption brokers, etc. Their one and only mission, to get that baby off the mother to give to her cohorts who would then sell to adopters. And not only were parents of their pregnant daughters being milked for $$$$ by the maternity home...many of their daughters were farmed out as unpaid 'house-servants'. Maybe the owners of these homes were big donors of maternity homes, therefore entitled to have a pregnant house-servant/babysitter for free.
So back in the BSE...no adopter can ever justify the 'fees'' paid to an adoption agency. The adoption agencies were paying nothing for the pregnant young mother back then. So in order for these adoption agency's doors to stay open...adopters had to be offering 'donations'. Maternity Homes, which were in great abundance during the BSE, were double-dipping. They got the bucks from the grandparents of the baby and the adopters....nifty little set-up they had going there. But of course, I must be some angry, bitter old burfmuggle...cause God Knows...it was all about 'in the best interest of the baby'!!! Bullshite!!!
O! and lest I forget... I also think many an adoption agency once the baby was irrevocably surrendered to the agency, applied for welfare $$$$ on behalf of the infant ( had seen this on one mother's records). When a baby is surrendered to an agency, the agency then becomes a legal quasi-parent of the baby, with full control to do with as deemed necessary. And of course the word 'abandoned' was used by adoption agencies...I imagine that word helped them in getting yet more $$$$$ for human flesh. Yet the adoption workers had no problems telling us mothers how awful and degrading it would be for us to go on welfare, yet they dipped their filthy hands into the welfare coffers AFTER they had 'control' of our babies. O! I went off on a tangent...I am sorry...just thinking about this stuff so pisses me off!