Annie and the Wolves by Andromeda Romano-Lax

A modern-day historian finds her life intertwined with Annie Oakley's in an electrifying novel that explores female revenge an the allure of changing one's past.
Ruth McClintock is obsessed with Annie Oakley. For nearly a decade, she has been studying the legendary sharpshooter, convinced that a scarring childhood event was the impetus for her crusade to arm every American woman. This fruitless search has cost Ruth her doctorate, a book deal, and her fiancé. But Ruth may finally have the evidence she is looking for. She has managed to hunt down what may be a journal of Oakley's midlife struggles, including secret visits to a psychoanalyst and the desire for vengeance against the "Wolves," or those who have wronged her.
With the help of Reece, a tech-savvy senior at the local high school, Ruth attempts to establish the journal's provenance, but she's begun to have jarring out-of-body episodes that are possibly parallel to Annie's own lived...

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