Sis Deans.
Titles I've written about:
Riding Out the Storm (2012):
Even though the majority of the book takes place outside of Maine, it begins there (here!), and there are some great details that prove Sis Deans has Maine Cred. (Like the brief list of local tv channels—the specific numbers, not the call signs—and Derek's love for Amato's. People are freaking passionate about that chain here.) The details about the feel of the bus, the interactions between passengers as the ride progresses, and especially the descriptions of other passengers prove that she's got Greyhound Cred as well.