If a person wanted to identify all of the past articles, interviews, etc. etc. about Gillian, David, XFiles and all relative links is it as simple as typing in their name in google and searching? Is there a better and more inclusive way?

Are you this person? This is the work of a lifetime! But you should try starting by Gillian’s official website (gilliananderson.ws) it has an archive section where ALL the articles and interview about Gillian are referenced by date. For David and XF, it’s more complicated but for the recent years, you can check @sunshinetoday. She has posted pretty much every article about them and Xfiles and I believe she has tagged them like #gillianarticle #davidarticle etc…
Good luck!