I was just looking over this today and noticed some things:
1F 91229-91234 Unlocking a door (item EF: Key to Baron)
20 91235-91240 Unlocking a door (item EF: Key to Baron) (different character?)Are you sure one of these isn't the weapon shop and other the door to the waterway?
55 92299-922A7 Message EF0A, 10, 11, being poisonedThe barkeep in Mysidia's pub, prior to talking to the elder.
5D 9231B-9232B Being turned into a toadA black mage near Mysidia's entrance, prior to talking to the elder.
8F 93ABD-93AD1 Message EF05, sound effects 17 then 14, casts Mini on you, message EF06A black mage in Baron's black magic class who fails so bad he ends up casting white magic.

91 93B05-93B18 Message EF03, Character 8 spins in place, jumps 2 spaces sideways, door opensArgh, I hate this event! Why can't the door just stay open after talking to him?

D4 94FCE-9500A ? Dancer's dance (with Giott's song)Agart's inn.
D6 95060-950B8 ? Dancer's dance (with Cecil)Baron, after killing Cagnazzo. If you talk to her from the side in the SNES version she'll push you through the wall - she's stronger than she looks.

04 90409-9040F Fight battle with 2 Mad Ogres (remove trigger 51)
05 90410-90416 Fight battle with 2 Mad Ogres (remove trigger 52)
F3 96801-96807 Fight battle with 2 Mad Ogres (or Behemoth), Set trigger flag 50 to completedThese were a mystery until I saw the last one. I bet these are the behemoths in Bahamut's cave.
FD 96866-9687F Viewing the moon?The telescope in Corio's observatory.
I figured you already knew what most/all of these were, just listed anything that didn't have a location.