I won't read anything about the Donner Party. I had been a fourth grader in CA and "studied" them as part of state history. Every year when my family and I would make a one-day excursion from Lake Tahoe to Reno we'd drive over the Donner Pass and stop at the statue.
Fast-forward to the late 1970s. I'd started writing, wondered if anything in the Donner experence would make interesting material, and checked two books out of the library. I didn't finish reading them but still had worse-then-usual insomnia for two months. My husband monitored my reading for a year.
That said, I think I'll go look for "The End of Alice" and maybe the new Cornwall book. At least no one has lied to me about them.