It sounds like #5 has a pea comb, so it is not a leghorn. Since it came from a white egg, I'm guessing it is a mix between an EE & a leghorn, which makes it an EE too. #2 may be one also - mixes between EEs & other chickens may be missing some of the usual features (pea combs, muffs, etc) found on the hatchery EEs, but they are still called EEs. Both #2 & #5 are roos though.