Very cute birds. Not Pekins though to the best of my knowledge. I believe they are mongrels (mutts, mixes, whatever), and looks like maybe Japanese bantam, Serama, Old English Game Bantam, and more, or something like that, maybe all of that and then some.
The rooster and the hen in the first 2 pics have strange wings, provided that actually is their primaries sticking out from under their secondaries (or vice versa)... I believe they're probably mixed breeds descended from culls from a breeder trying to remove those genetic faults. They're probably not serious faults, just renders them disqualified from showing.
But they're interesting looking birds, anyway. I'm very partial to mixes myself.