The white one loks to be a White Rock roo. the black looks like a pullet may be black australop or black sex-link. needs to feather in some more for a better guess. I looked again at the black one kinda leaning more towards BA pullet. Give about another week or so you'll be able to tell better.
I have a white rock pullet and it looks exactly like the white one (except for yours looks like a roo)
for the 2nd one: she looks like a australorp, I had one but she either ran away or got eaten by something...