From Slavery to Poverty: The Racial Origins of Welfare in New York, 1840-1918 (New York: New York University Press, 2009)
For God and Mammon: Evangelicals and Entrepreneurs, Masters and Slaves in Territorial Kansas, 1854-1860 (Athens: University of Georgia Press, 1996)
Selected Articles/ Book Chapters
"The Blackamoor as Voyager: Re-Significations in Transit from Old Worlds to Estevanico, Abraham Lincoln, Bayou Ballads, and William Attaway," in Awam Amkpa ed., Re-Significations: European Blackamoors, Africana Readings (Rome: Postcart, 2016), 75-93.
(With Awam Amkpa) "History in Ousmane Sembène's Guelwaar and Ceddo," Nka: Journal of Contemporary African Art (2010).
(With Awam Amkpa) “Picturing Homes and Border Crossings: The Slavery Trope in Films of the Black Atlantic,” in Ana-Lucia Araujo ed., Paths of the Atlantic Slave Trade: Interactions, Identities, and Images (New York: Cambria Press, 2011), 359-387.
(With Awam Amkpa) “ History in Ousmane Sembène’s Guelwaar and Ceddo,” Nka: Journal of Contemporary African Art (Fall 2010), 14-21.
"Elites, Subalterns, and American Identities: A Case Study of African American Benevolence," American Historical Review 109 (October 2004): 1104-1139.
"Bleeding Kansas: A Review Essay," in Virgil Dean ed., Territorial Kansas Reader (Topeka, KS: Kansas State Historical Society, 2005), revised and updated version of 2001 article in Kansas History, part of award-winning Review Essay series honored by American Association of State and Local History
"Black and 'Dangerous'? African-American Working Poor Perspectives on Juvenile Reform and Welfare in Victorian New York, 1840-1890," Journal of Negro History LXXXVI (Spring 2001): 99-131.
"'A Model New England State': Northeastern Antislavery in Territorial Kansas, 1854-1860," Civil War History 29 (March 1993): 31-46.
"Servants for Freedom: Christian Abolitionists in Territorial Kansas, 1854-1858," Kansas History 16 (Autumn 1993): 200-213.
Book Reviews/Review Essays
American Historical Review, Annals of Iowa, Georgia Historical Quarterly; Great Plains Quarterly; History: Review of New Books; Journal of American Ethnic History;Journal of the Civil War Era; Journal of Southern History; Journal of the West; Kansas History; Presidential Studies Quarterly.
Entries/Short Essays under contract in Peter Parish ed., Reader's Guide to American History (1997), and Hasia R. Diner ed., Enclyclopedia of American Women's History (2010).