Death of a Proper Bostonian. Old Los Angeles, #6

A deadly homecoming It's August 1873, and at long last, physician and winemaker Maddie Franklin Wilcox makes the journey home to her beloved native Boston. Her business is to deliver her ward and apprentice, Elena Ortiz, to the local women's medical school, and that also includes visiting her father, her sister and her family. But at a dinner with the family of Maddie's late and very much unlamented (at least, on her part) husband, young John Wilcox, a cousin there to entertain the guests with his nature talk, is shot.
Then the next morning, the eldest of the Wilcox brothers is found shot in his bed. Maddie quickly concludes that the shooting of the oh, so charming naturalist was but a distraction for the shooting of her former brother-in-law. Chased by a corrupt Boston police officer, confronted again and again by the relentless prejudice of the city's medical practitioners, and in danger of losing her heart to young John Wilcox (who had plenty of reasons to want his cousin dead), Maddie's happy homecoming becomes a morass of suspicion with someone willing to kill her and the people she loves.