I can't help you with the breed, although the roo is a frizzle something. They sure are cute! If the chicks grow at all like Barnevelder chicks do, then the bare shouldered ones are boys and the more filled in ones are girls. Best wishes!
Your rooster is a sizzle, the hen looks like a smooth sizzle, thus the babies are sizzles. The last chick picture is a boy, can't see the rest well enough. How old are the babies?
Thank you for the help everybody! The combs of all of the other aren't very large except for the very last one : ) Though some of them have nice sized tails. I thought that they might be white cochin frizzles as well..