Delawares generally have more barred tail feathers, so I'm thinking Columbian Rock cockerel on the white one. The brown one is confusing, but the pea comb is making me think Easter Egger. Guessing at cockerel, but am not sure. Could you post another pic or two?
Didn't I already answer this on your other thread? The brown one looks like an Easter Egger, the white one is a Columbian Rock. Delaware cockerels have barred hackle and tail feathers. His are black, edged in white; not barred. Therefore, he cannot be a Delaware. His legs are yellow, so he can't be a Light Sussex. He's got a single comb, not a rose comb, so he can't be a Wyandotte either. That leaves Columbian Rock as the only possibility.