One of my favorite tidbits of WEG lore is that the name "Mace Windu" appears much much earlier than Ep.1 as the name of a random Squib in a random supplement: https://www.reddit.com/r/StarWars/comments/3z61h9/til_mace_windu_was_the_name_of_a_squib_trader_in/
But what I didn't know till now: "Mace Windy" is an even older name from Lucas' original 1973 treatment!