Question!! Help would be appreciated!! ☺️

Kaley • I'm 21 and my first baby is due 10-13-15 😘 and its a boy!!!💙
My fiancé and I want our son to be a jr !! Which would be Maxwell Anthony, but i want to add a name to honor my father that passed away but if we added a middle name would he still be a jr or not ? Confusing lol thanks guys!!