Did you just get them at 6 and 9 wks old or have you had them since they were a few days old?
I only have experience with chicks a few days old.  I would spend about 30 minutes in the morning before work changing water, refreshing feed and just talking to them in the beginning.   And about an hour to an hour and a half at night, talking to them and gently picking them up after my hand had been slowly moving around in the brooder.  
When they were 3 wks old, I started grit and meal worms and man did they LOVE me then.  They would fly out of the stock tank brooder to come see what I brought them.  Flying up on my lap, arms, back if I was bent over the brooder.
I never snatched them up, but would move slow and talk quietly and calmly and pick them up gently from the front by putting my fingers between their legs.  They would just relax and let their legs hang.
When I moved them out to the coop at 6 wks, I would spend the same amount of time out sitting on a stool just talking to them and gently picking those up that didn't fly up on my lap or arms.
Now at 13 wks old, I can let them out of the run for fresh grass and if they stray too far, I'm able to walk up to them to pick them up.
This has worked for all but one of the ten who has been the henny penny the sky is falling EE chick who turns out to be a roo.  The other EE is also a roo but he is very friendly.  The only time I can pet or pick up the wild one is at night when they are all on the roost.
Good luck with yours.