Pioneer Girl by Bich Minh Nguyen.
After obtaining her PhD in American literature, a jobless Lee Lien finds herself heading home to the Chicago suburbs to work in her mother and grandfather's café. Before long, Lee's tense relationship with her overbearing mother leaves her hoping to break away from a life she always seems drawn back to. When her older brother comes home only to quickly disappear again, he leaves behind a gold-leaf brooch from their mother's past in Vietnam that stirs up the forgotten childhood dream of an American reporter who visited her grandfather's original café in Saigon in 1965. Based upon a passage from the Little House books, Lee is convinced the reporter must have been Rose Wilder Lane, daughter of Laura Ingalls Wilder. Could this pin link her family to one of America's most famous pioneering legacies?
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