As far as I know this book was not ghostwritten. Palin herself wrote most of her 1st book. reading the book it sounds like Palin talking. That is very hard to fake.
AN incredible number of people from that area abandoned the Lower 48 and went to numerous parts of Alaska in the 1920 to 1950 period.
Ted Stevens was an anomaly ~ he was from Brightwood (a large neighborhood in Indianapolis). However, he had relatives from that very same place.
Still, she doesn't do enough "r coloring" for my taste, so she needs to point that up a bit ~ then she'll really be more authentic than she ever imagined.
I’m confident that Bill Ayers did not ghostwrite this one.