Wikipedia is an excellent resource for finding people.
As of 2024-04-23, the English Wikipedia has 6.8 million articles (from Wikipedia:Size_of_Wikipedia).
This page also has a graph that shows the English Wikipedia is about 10% of the total, but much of that is auto-generated translations, and there will be duplicates even if it isn’t. Wild guess: English is 25% of the total, so maybe 30 million articles.
Future research needed: How many pages have infoboxes. And which types of infoboxes?
I plan to use Wikipedia to seed the PIDO identity database.
Useful links: