One of them is definitely a cockerel. The other one may be, too, but I can't get a good look at its comb and wattles.
Oh, dear. With Silkies, you have to wait a lot longer to be able to tell. Even then I'm not the right person to ask, as I don't really know what to look for. You're better off posting a thread about her in a month or so.
The mother is Iggy (turquoise food color hiding a injury)below that we lost.The father Zoomie my black silkie cockerel.