Why don't we approach this from the angle of a skittish rooster? The objective is to calm him and tame him, and teach him manners. Yes, roos should have manners.
What do you give them for treats? Even if it's only a ration of scratch grains each day, feed him first by making him take it out of your hand. And please find a comfortable leather glove for you and your kids to use so a finger won't get nicked.
Get comfortable and hold out the treat to him. He will come over to see what it is, but don't grab him. If he eats it from your hand, give him more until he's had all of his share. If he doesn't eat any, keep trying for fifteen minutes, then feed the girls their treats.
Do this once each day until he's eating calmly from your hand. It may take a week. Next step is to slowly touch him while he's eating from your hand. This exercise is to get him to trust you and not be afraid of your hands. Once a day is all that is necessary, but do it every day.
Once, he is eating from your hand and allowing your to pet him, then pick him up after he begins to eat. Do this by holding out your hands toward him, and then slowly inching forward until you can make gentle contact. Remember, no sudden movements! Carry him around or just sit quietly with him in your arms. After a while, you can even kiss his little head, if you're so inclined.
So, work on this. It's easy and fun, no running involved, no stress. Remember, no sudden movements.