Padmé deu a Luke e Leia seus primeiros nomes antes de morrer. Isso é mostrado em Star Wars Episódio III.
After Kenobi defeated Vader, and left him for dead, he took Amidala to a medical facility on Polis Massa, where she delivered twins, a boy, Luke, and a girl, Leia, whom she both named.
Do Episódio III:
MEDICAL DROID: It's a boy.
PADME: Luke . . .
PADME can only offer up a faint smile. She struggles to touch the baby on the forehead.
MEDICAL DROID: ... and a girl.
PADME: . . . Leia.
-- http://www.imsdb.com/scripts/Star-Wars-Revenge-of-the-Sith.html
O nome Skywalker vem de Shmi Skywalker, a mãe de Anakin.
The Skywalker family was a Force-sensitive Human bloodline whose first known member was Shmi Skywalker.
Do episódio I do roteiro de rascunho, a introdução de Anakin, depois (mais tarde) Shmi:
A disheveled boy, ANAKIN SKYWALKER, runs in from the junk yard. He is about nine years old, very dirty, and dressed in rags. WATTO raises a hand, and ANAKIN flinches.
Anakin's mother, SHMI SKYWALKER, a warm, friendly woman of forty, enters from her work area and is startled to see the room full of people.
-- http://www.imsdb.com/scripts/Star-Wars-The-Phantom-Menace.html