Second try!

[agrieb]

I posted a few pictures when they were younger without much luck determining the breed, so trying again! I can't remember for the life of me what we bought.

 

[BChick96]

Black Australorp and Barred Rock/Dominique

 

[Pretty Birds]

Black Australorp and Barred Rock/Dominique

I agree. If it is a Barred Rock is will have a single comb, and if it is a Dominique it will have a rose comb.

 

[keesmom]

Black one could be an Australorp or a Jersey Giant. What kind of comb does the other have? Thinking Olive Egger.