Bernard Broke/theories

Like Lolita Goth, Bernard has the last name of a premade family (Broke) yet does not appear on the family tree, why do you think this is? Post your theories Below:

Who is Bernard Broke?

 * It could be just they couldn't fit him in the sims games.
 * Just because he has the same last name doesn't mean he's related to them
 * I think he was the middle brother of Flat and Buck, or he is the deceased twin of Ruby, or not necessarily her twin, but another sibling. He may also be their father, or a cousin.