Kildall and IBM
I know it's late enough that probably no one will read this comment, but when I read this:
It is believed Kildall was actually flying with Godbout when IBM called Kildall's home
All I could think was "Thomson vs Orlowski: Fight!".
(Personally, I find the "Kildall was at the meeting" version of the story, as you describe it above, better supported by the evidence I've seen.)