Sorry, I've been reading a lot of the Pre-Trial transcripts the last several days.
http://www.campscottmurders.com/pre-trial-volumes.html
There's a lot of good information there. For information about what the Camp leaders did the day of the murders, how they managed getting kids home, read the testimony of Barbara Day and the camp counselors, also testimony of the Camp Ranger Ben Woodward. Their accounts are pretty consistent, but each one remembers details specific to their experience, so it helps to read them all.
Those are in Vol 1, Vol 2 and Vol 4 (counselor Susan Emery)
http://www.campscottmurders.com/pre-trial-volumes.html
Index to witnesses
http://nebula.wsimg.com/05fb84ff627...4109980B88DCD7256&disposition=0&alloworigin=1
Testimony relating to searching for Hart: Larry Bowles, Dennis Reimer and Larry Clodfelter, among others.
Since they're PDF files, my computer doesn't allow me to cut and paste text from the testimony. I'd love to spend a couple hours going back and picking out all the lines and listing them by page and line number, but am too busy right now. I do encourage everyone to read these documents. Agree or not, they're legal testimony, submitted in court, under oath.
WRT searching for Hart, LE was able to get search warrants for some homes, eg they were able to justify searching his mother's home. But, according to other witnesses (see testimony of Larry Dry), he was also put up by friends, etc. See also, IIRC, testimony of Jimmy Ray Beck, a local minister who testified about going with another minister to GLH's mother's home while GLH was in hiding. They met and talked to GLH there, hung out for a couple hours and had breakfast with him. It was pretty common knowledge in the community.
And yes, some members of GLH's family thought he was also "framed" for the rapes in Tulsa in 1966. Not uncommon with family members of violent criminals.