I don't know anything about legalities. Do know that US Census only
releases one after 70 years.
And, recently, someone sent a notice to the list about con men and crooks
stealing names to obtain falsified ID's because they had access to the
birth date, place, and esp. the mother's maiden name that so many companies
use as a password. I promptly tried to get all living people off my
on-line genealogy lists ... which caused another problem ... doting
grandmothers emailing me wanting to know why their little darling wasn't
listed. Go figure!
Jane