Maureen O'Hara was certainly described as acting as stew when Charles brought the Sandringham over to Europe and they did some local trips.
She may have been "acting" as a stew, since that's what she did for a living--acting. She was a major, major U. S. film star and Hollywood icon from 1939 until as late as 1972, when she last did a film with, I think, John Wayne. She would hardly have been working as a stewardess or even had the slightest idea what they actually did for a living.
I'm sure you're right that Antilles was on the VP register, so make that "the first woman president of a scheduled airline in North America."