What breed are these chickens? I can’t figure it out!

[Adople]

Please overlook how dirty these girls are. This was the first day that we brought them home and the place we got them from was incredibly muddy due to copious amounts of recent rain.
Can anyone help me identify what breed of chicken these are? We were told they were white leghorn but after researching the breed I noticed the coloring in the legs and beak aren’t yellow like the typical white leghorn breed.
I’ve tried looking it up with no luck and I would really appreciate any assistance in figuring out what breed they are!

**additional question while I have some eyes- it is fairly cool where we live right now (day temps hovering right at 70 and night temps in the mid 50’s). Should I try to bathe them on a nice sunny day? This picture was taken the day we brought them home and were in the process of setting up their coop area so their new living quarters are decidedly much less muddy than where they came from. I just don’t want to make them sick, but I also hate seeing them so muddy and yucky.

 

[nuthatched]

Both Orpingtons and Sussex have pink legs, I believe marans do too

 

[Rhodebar Lover]

What country are you located in? These guys might be fine but I would maybe keep an eye out for signs of coccidiosis. Wet ground can lead to this and they look somewhat pale.

 

[Adople]

What country are you located in? These guys might be fine but I would maybe keep an eye out for signs of coccidiosis. Wet ground can lead to this and they look somewhat pale.

I am located in Southeastern Kentucky, USA. We’ve made sure to provide them a much fresher area where they have access to straw, grass and an area for dust bathing. Poor things looked pitiful and I couldn’t leave them there so we brought them home. They have access to fresh water and a few different types of feed/scratch/oyster shells. Is there anything I can do to help them more? Would you recommend a gentle bath or soak? They are quite a bit smaller than the others in my flock that are the same age.

 

[Seaslug]

They do not appear to have the leghorn Mediterranean body type nor the large single comb of a leghorn. But a lot of breeds are available in white. Are they suppose to be an egg lay breed?

Ignore this if the matter is already a moot point, but I highly recommend quarantining these birds before you integrate them with your flock.