So exciting!

Your lovely Chickaletta sounds like my Layla. Finally getting fertile eggs from her with the 3rd suitor.

If Biscuit is full bearded, then most of the chicks will be half bearded.
If he is half bearded, then he likely carries the non bearded gene.
I had a beardless hen and crossed with a bearded rooster, the majority of the chicks were bearded. One was non-bearded.
I have also had two bearded birds throw beardless chicks, so not quite sure how it inherited, though I believe the bearding gene is incomplete dominant.