Need help identifying our chicks, please!

[mamabear6810]

Hello!
We are new to raising chickens but we now have 30 and we arent sure of the breeds. We got them all from tractor supply at different times. According to some signs we believe we have leghorns, blue plymoth rock and blue sapphire gems...but we dont know which is which!!! We would really appreciate help so we know what these babies are!!!
Thank you for any help!!!

 

[mamabear6810]

I believe the biggest are around 8 weeks, the medium are around mayne 2 1/2 weeks and the smallest aroumd 1 week. Being at tractor supply they never really knew. #10 was a day or 2 old when i got them so those are our youngest

 

[nuthatched]

3 and11 are Columbian Wyandotte, 8 is a gold laced Wyandotte, 1 is a Barred Plymouth Rock, 3-4 looks like a white Rock or cornish rock, probably cockerel , 5, a buff orpington, 9 and 10 are most likely the Easter eggers but it's hard to tell this early. 6-7 could be either australorp or the production blue.