punctuation - Is there a comma *after* a list with an Oxford comma?

Explanations of the Oxford comma often use examples that either consist of the list alone or a sentence that ends in a list, e.g.:

red, white, and blue
To my parents, Ayn Rand, and God.

What is unclear from these answers is whether there should be a comma after the last list item, when using an Oxford comma:

1. When my mom, my dad, and my sister came home ...


2. When my mom, my dad, and my sister, came home ...

Is there a comma after a list with an Oxford comma?

If possible, please provide a reliable source.