When you go to the Privett website it looks like the chipmunk ones could be Welsummer, Silver Leghorn, Speckled Sussex, EE or maybe a stretch a Penedesenca.
I think 1 and 4 are GLW and 2 is speckled Sussex. I'm torn on 3 - I don't think it's the same breed as 2 since it seems quite a bit lighter in color. I'm leaning more towards brown Leghorn for that one.