I have gone and just catching up.Yes on recessive white.The one white one could have 2 copies of recessive white but if it has some spots of colored feathers as it grows up it would be dominate white.It is possible to carry both kinds of white.I'm one of them that has a White hen. I just hatched out eggs from her with blackish colored rooster. One of the offspring is white with cream feathers coming in and the rest are various shades of black/brown. I guess that means her white is recessive.
CG