Here's some of the sources I've seen when working on that topic [1] : Census data, Phone books, Academic bibliographic databases (web of science, pubmed), list

Here's some of the sources I've seen when working on that topic [1] : Census data, Phone books, Academic bibliographic databases (web of science, pubmed), list of athletes at olympic games, Wikipedia, LinkedIn, ... [1] https://antonomase.fr/fi/mazieres_bms_names.pdf https://antonomase.fr/fi/mazieres_bms_names.pdf you'll find the references to some of these examples.