The white mixed one looks like it has what we call "crunchy" feathers. I say that one looks like a Silkie mix! Does it have an 5th toe by chance? The black ones with the white topped heads could be Australorp mixes.
The brownish-gold one that is on the right in most of the pics, with the stipe up its back/head, looks like an EE. The white one also looks like an EE. From the looks of it they all may be.