Like I said above, I don't think that the parents are going to want to take time to organise anything much beyond a quick "let's all stay together!". As I read the situation, at the moment Fordogrim, Harold and Kalimac are racing into the woods just ahead of the rest -- which makes sense as these three are mounted and the rest seem to be on foot. Perhaps these three could reach the scene of the wolf attack first, cause the wolves to back off from the children for a moment, and then become the centre of their attack. Things could get pretty desperate for them before Marcho arrives with a more orderly group of hobbits to save the day (I hope. . .
)