IF they all live at the same (your) address and can prove it they will all be admitted.

Otherwise the 'two guest' rule as outlined in the aa.com link above will normally apply.

It somewhat depends on the AC and the time of day. Small clubs (SJC) on a Friday afternoon will normally be more strict that ORD (larger club) on a Saturday morning.

It never hurts to ask nicely .. if they say yes or no be understanding!