- My Name is Not Forgotten (2008)
- If Only for Us: A Collection of Short Fictions (2009)
- The Secret Life of Mary Todd Lincoln (2011)
- Love Entwined (2012)
- Until She Finds Love: A Novel of Mary Lincoln's Sister Elizabeth (2014)
- Mary Lincoln's Children (2015)
- The Heartbeat of Mary Lincoln (2016)
- The Many Lives of Mary Todd Lincoln: A Novel (2019)
- The Woman Behind the Throne: A Novel of Queen Victoria and Lady Jane Franklin (2021)
Non-Fiction:
- Daughters of the Confederacy: A History (2010)
- Wives of the Presidents (2012)
- Mary Lincoln: A Biography (2013)
- Lizzie: The Life of Elizabeth Todd Grimsley, Mary Lincoln's Sister (2017)
- Lincoln's Ladies: The Forgotten Women Behind America's Greatest President (2019)
- Mary Lincoln: A Life of Fear and Fashion in the White House (2021)