Not sure but, here is what my chart says, we can hope it is correct. lol
Rosecomb is Dominate and Single Comb is recessive and should be completely dominate and produce Rosecomb. Of course this is all depending on the genetics of the parents and so forth.
As for the Wyandotte, hmm maybe the...
Oh wow, this is a guess for them. lol.
1) Dominique cross with a Frizzle Cochin
covers- barring, rose comb, feathered feet, and frizzle.
2) Looks like a barred rock
3) Looks like a Columbian Wyandotte Rooster
Good luck with them babies