2021 Mark Lynton Prize, Columbia University School of Journalism and the Nieman Foundation
2020 Book of the Year, Victorian Society
2021 James Bradford Best Biography Prize, SHEAR
2021 Best Book Prize, SHEAR
2020 George C. Rogers Jr. Book Award, South Carolina Historical Society
2021 George Washington Prize, Mt. Vernon (finalist)
2020 Douglas Stewart Prize, State Library of New South Wales
2020 Stubbendieck Great Plains Distinguished Book Prize, Center for Great Plains Studies
2020 General History Prize, State Library of New South Wales
2019 Bancroft Prize
2020 Ray Allen Billington Prize, Organization of American Historians
2019 Frederick Douglass Book Prize, Gilder Lehrman Center for the Study of Slavery, Resistance, and Abolition (finalist)
2017 Frederick Douglass Prize, Gilder Lehrman Center
2020 George Washington Prize, Mt. Vernon
2019 John C. Ewers Award, Western History Association
2019 Gold Medal for World History, Independent Publisher Book Awards
2020 Spur Award, Western Writers of America
2021 Paul E. Lovejoy Prize, Journal of Global Slavery
2020 Western Heritage Book Award for Nonfiction, National Cowboy and Western Heritage Museum
2019 Lois P. Rudnick Prize, New England American Studies Association
2021 Kate Broocks Bates Award for Historical Research, Texas State Historical Association
2019 Berkshire Women’s History Conference Prize