If neither parent is a barred rock, you most definitely DO NOT have a barred rock. you have a barred mutt. color is independent of breed, though some colors are more common in some breeds than others.
Only males can have red in the shoulder - the one with the lighter head and splash on the shoulder is definitely a cockerel. The combs are very large, which would suggest the WL as the culprit for mom. There was a poster a while back who had WL/gold comet mixes and came out with a barred chick, so it's possible the one in question is a pullet UNLESS it also has red leakage on the shoulders.
Edited to add: it does look like you have red leakage on the shoulder for both. Sorry, two males. Not even close to being related to a barred rock.