I'm not as familiar with Meyer's breeds as some of the other hatcheries', but .....
That first bird is a pullet, but I have no idea what breed it is, sorry.
second looks like a blue Marans pullet.
third looks like a partridge Rock, probably a pullet. If the breast feathers are reddish/brown, pullet. If they're black, cockerel. but the comb is small enough I'm thinking pullet.
fourth could be a blue Marans cockerel.
fifth is probably a gold laced Wyandotte, but with a straight comb. I'm not sure they have any other gold laced clean legged breeds. looks like a pullet.
six looks like a mottled something.....but not much mottling. It's kind of a puzzler to me. Pullet.
seven is a gold laced Wyandotte pullet.