Help with breed please- welsummers?

[jctid]

I ordered 19 chicks from Dunlap Hatchery. I received 22. They are 3 ½ weeks old in these pics. I can't ID 2 of them. I ordered 2 straight run welsummers. I ordered 1 brown leghorn. 2 EE which I have ID'd by their muffs. Here are the 2 in question:

Bottom chick is a brown leghorn...

Brown leghorn at top of picture below...

Now here are my presumed Welsummers- not a lot of pics but they are darker in color, but not as dark as the brown leghorns. I am fairly certain I have a pair- one is already obviously a little cockerel.

Brown leghorn in center, ?? At top of pic:

And here are all 3 together: Welsummer (pullet) at top, Brown Leghorn just below and to the left, then ?? At bottom between the place and the white one.

Thank you for your help. These birds do not match any other breeds Dunlap carries, they have a relatively small variety....unless they are also welsummers. ??? But the coloring is quite different.

 

[Chicken Girl1]

I think I see Welsummers, a Leghorn or two, and maybe a Production Red. I'm kind of confused on who is who in the pictures.