After all the problems I had trying to get eggs to hatch with that one pair of Kos I had I switched to a different hen and finally hatched some chicks from my Ko cockerel.
All the white ones are from them.
Since he is producing some odd chicks, I decided I will keep him for a while and raise a few more chicks off of him to see what else he produces. The chicks are still not growing any feathers on their backs at 2 weeks of age.