They all appear to be Old English Game Bantam crosses or extremely poor-quality Old English Game Bantams, as their leg color is wrong and the rooster has feathering on his feet. Below are the varieties of OEGB that they were most likely crossed with:
1st photo: Silver Duckwing OEGB
2nd photo: See below answers
3rd photo: Brown REd OEGB
4th photo: Black Breasted Red OEGB
5th photo: Silver Duckwing OEGB
6th photo: Wheaten OEGB