Are Names of Children Clues

My ancestral couple, James and Elizabeth (Chaney) Rampley had several children, including:

• Thomas--father of James and Elizabeth
• John--too common to be a real clue
• James--grandfather of James and James himself
• Riley--?
• Martha--too common to be a clue
• Elizabeth--too common to be a clue

Riley is a name that just seems to appear. Is it a clue to someone's maiden name, perhaps that of Elizabeth's mother? 

Clues contained in names are clues, not facts.