I was wondering, since palpatine ordered the order, order 66 for all clone commanders to kill the jedi why wasnt Quinlan Vos killed? i know he was thought to be killed then hide with wookiees on kashyyyk for a little bit then he was found again by Commander Faie and almost died (agian). But why didnt Vader find him and kill him? or his son Korto Vos who evidently had the ability to use the force but wasnt trained and if he was still alive when the rebellion was around how come Luke didnt sense him or his son and why didnt Obi-Wan kno? or Yoda?

I wonder did any one know that Quilan was still alive? and that he had a son who could use the force?