Hi!
I'm pretty sure Atom is a transcription of the name Adam, which is also spelled Atam or Adam.
Arsinée is a Feminine form (French-ized) of Arsen, which comes from the Greek name Arsenios meaning "virile; manly."
Arshile-- The most famous Arshile, Arshile Gorky changed his name to that from Vostanik Manoog Adoyan. He apparently took the name from Achilles, the tragic Greek hero.