What breed is this?

[8 Chicks 1967]

View attachment 1236060 What about this gal?

And could the other one be a Copper Marin’s?

Brown Leghorn and probably not, copper maran hens are much bigger bodied.

 

[drumstick diva]

agree with Jed Jackson

 

[LilJoe]

View attachment 1236019

Black sex link

View attachment 1236060 What about this gal?

And could the other one be a Copper Marin’s?

Light brown leghorn