Thank you to the MacDowell Colony and to Yaddo for residencies that supported me in the writing of this novel, and to the Virginia Center for the Arts, whose residencies sustained my writing and research in Alexandria, Virginia, and at the Battle of the Wilderness site. Thanks to Lemley Mullett of the West Virginia and Regional History Center at West Virginia University Libraries, and to the West Virginia Department of Arts, Culture, and History for help in locating historic images. Thanks to Lynn Nesbit, my miraculous agent; to the entirety of Knopf and especially to Ann Close, my astute and patient longtime editor; to her excellent assistant, Rob Shapiro; to production editor Victoria Pearson; to book designer Maggie Hinders; to jacket designer Kelly Blair; and to Reagan Arthur, whose enthusiasm for this novel was so encouraging. Thanks to reader extraordinaire Pamela Rikkers. Thanks always to my family, who understand, and to my husband, Mark, who helps in every way. Respect and thanks to Quaker physician Thomas Story Kirkbride, whose influential 1854 publication, On the Construction, Organization, and General Arrangements of Hospitals for the Insane, influenced the practice of “moral treatment” for the mentally ill for some fifty years, until his humane methods, like all methods, fell out of favor. Among the dozens of books in my Night Watch research shelves, I celebrate in particular The Civil War Told by Those Who Lived It, four volumes published by Modern American Library, in whose pages hundreds of indelible Civil War–era voices live on. Other helps were The Art of Asylum-Keeping, by Nancy Tomes; The Invisible Irish, by Rankin Sherling; Masterless Men: Poor Whites and Slavery in the Antebellum South, by Keri Leigh Merritt; and The Lincolns: Portrait of a Marriage, by Daniel Mark Epstein, which includes oft-quoted lines of Mary Todd Lincoln originally reported in physician Anson Henry’s April 19, 1865, letter to his wife. Penned in anguish four days after Lincoln’s assassination, the letter is archived at the Illinois State Historical Society. Thanks to Joe Jordan, an asbestos and demolition expert whose interest in the architecture and history of defunct Weston State Hospital (closed since 1994) led him to purchase the buildings from the State of West Virginia for $1.5 million in 2007. Original name restored, the Trans-Allegheny Lunatic Asylum is now a National Historic Landmark open to the public (see TALA.org); three hundred of the original six hundred acres of asylum land are part of the grounds. Thanks to that land and the buildings themselves, the rooms I visited and memorized, the long hallways, the views from the windows, every one of which seemed illumined by the gazes of so many.