What Breed/Gender are they?

[ebrader]

hi i am very new to raising chickens and i have no idea but i have some chickens that are supposed to start laying any day now. one of them has a larger crest than all the others could it be a rooster? the person i got them from said they were all hens...

and also what breed are they? they are all white and produce white eggs(mine have not laid any yet but the lady i got them from showed me one) they are meant to be 4-h chickens... and she said they would be under the commercial section for showing? ( ill post a pic soon)

 

[Cloverleaf Farm]

Could be white leghorns, even the hens have HUGE combs....