Billy,
I've taken my entire family (wife, son and two daughters) to Lone Pine Lake for a Whitney Climb over a few days. It is a great camping spot, as long as you don't mind the extra miles to and from the summit. We experienced no incidents of any kind. I've also taken a number of groups to Outpost Camp without any incidents. But, of course, you need an overnight permit for camping. I wish you and your dad the best on your Whitney hike.
