Hekla
a volcano in Iceland
340 Eduarda is a main belt asteroid that was discovered by German astronomer Max Wolf.
Eilonwy
princess in Lloyd Alexander's Chronicles of Prydain and Disney's "The Black Cauldron"
In the film
the name is pronounced ay,LON,wee, instead of eye,LON,wee. This is also the pronunciation given for her name on her Disney Wiki page.
February
a character in the StarKid musical "Starship"