Thanks to those who have sent suggestions. For reference; I am only focusing on the Northern part of those states (say above the White Mountains). This is for my own sanity: there are simply too many unsolved cases in the Southern regions of those states. It begins to resemble what Tracey Walter referred to as “the lattice of coincidence” in Repo Man: if you look hard enough you will come to the conclusion that everything is connected. I’m not goin’ there.