Man, awesome thread. I’ve only skimmed it so far, but am already looking forward to getting into it and reading a number pf the old novels, sourcebooks, and guides again!
My meagre contribution:
From Pages 24-26 of the “Star Wars: The Essential Chronology” book (2000 edition), by Kevin J. Anderson and Daniel Wallace:
^ wookieepedia page https://starwars.fandom.com/wiki/The_Essential_Chronology_(real-world_book)
The book is from 2000, and while it does contain events from The Phantom Menace, it obviously doesn’t contain the timelines, events and characters from the other two PT films.
The screenshot above also mentions Bail Organa, Mon Mothma, and Garm Bel Iblis of Corellia; the third Rebellion co-founder (the three main revolutionary groups coming together to work as one; the 3 signatories of Alliance to Restore The Republic), and Garm somehow being a character I often forget about.
A fan theory on Garm Bel Iblis maybe appearing in Andor’s 2nd season (and that we may have already seen him in the 1st season of Andor?):
www.inverse.com/entertainment/andor-luthen-fate
wookieepedia page for Garm Bel Iblis: https://starwars.fandom.com/wiki/Garm_Bel_Iblis/Legends