Discovered using the Survivalism video. http://www.judsonogram.net/
On the staff page is a login form:
User: Preston Gantry Case number: 4382BX12 password: francesca
Logging in takes you to http://www.judsonogram.net/personnel/gantry/casefiles/4382bx12/default.htm
New text clues
The following text was pieced together from images on the Judson Ogram Correctional Facility site: "[a]nd the probable course of natural select[ion]". An additional unplaced fragment reads "[??]ve shall best."
The text appears to be a snippet from The Origin of Species by Charles Darwin, notably the passage:
We shall best understand the probable course of natural selection by taking the case of a country undergoing some physical change, for instance, of climate. The proportional numbers of its inhabitants would almost immediately undergo a change, and some species might become extinct.