For what it's worth, adoption records in NY state are extremely difficult to access.
to the current laws, access to adoption records in New York State is limited. New York is a closed records state which means that governmental agencies, courts, or adoption agencies WILL NOT release copies of original birth certificates. The remaining adoption records held by the state and any agency involved are also sealed and none of the parties involved; the adoptive parents, birth parents or the person adopted, are allowed to access the adoption records."
And this is true even for very old time records, sadly.