I've actually done something very similar to this when we were looking for younger lawyers on behalf of a founder who was selling AI tools to law firms!
Serge's suggestion is great, we used that as well! But you can either try to find other web info about these people, or even do what we did: Use AI to guess someone's age based on their profile picture, haha!
Happy to bounce more ideas if you'd like to send a DM Sam B.!