1. “Slave Trade,” Poulson's American Daily Advertiser (Philadelphia, PA), January 1, 1808 Google Scholar (quotation), 3; Du Bois, W. E. B., The Suppression of the African Slave Trade to the United States of America, 1638–1870 (New York: The Social Science Press, 1954), 107–8Google Scholar; Thomas, Hugh, The Slave Trade: The Story of the Atlantic Slave Trade, 1440–1870 (New York: Simon & Schuster, 1997), 552Google Scholar; Davis, David Brion, The Problem of Slavery in the Age of Revolution, 1770–1823 (Ithaca and London: Cornell University Press, 1975), 137Google Scholar; and Morgan, Kenneth, “Proscription By Degrees: The Ending of the African Slave Trade to the United States,” in, Ambiguous Anniversary: The Bicentennial of the International Slave Trade Bans, ed. Gleeson, David T. and Lewis, Simon (Columbia: University of South Carolina Press, 2012), 1–10 Google Scholar.

2. David Eltis acknowledged that “there was certainly considerable U.S. ownership of voyages in the later Brazilian and Cuban trades, but the actual ownership of voyages in particularly difficult to establish after 1835.” As a consequence, a search of the Trans-Atlantic Slave Trade Database reveals only 194 voyages under the United States flag between 1808 and 1861, which grossly underestimates the involvement of United States ships, capital, and crews in the smuggling trade. Eltis, David, “Was Abolition of the U. S. and British Slave Trade Significant in the Broader Atlantic Context?” William and Mary Quarterly 3rd Series LXVI (2009): 720–24, 729Google Scholar (first quotation, 720, second quotation, 729); Canney, Donald L., Africa Squadron: The U.S. Navy and the Slave Trade, 1842–1861 (Washington, DC: Potomac Books, 2006), 233–34Google Scholar; and Transatlantic Slave Trade Database http://www.slavevoyages.org/tast/assessment/estimates.faces (October 15, 2012). Ever since Philip Curtin attempted to estimate the volume of the African slave trade in 1969, scholars have struggled to ascertain the volume of the illegal trade of the nineteenth century, a trade that Curtin had underestimated. Thomas, Slave Trade, 743, 746, 862; Murray, D. R., “Statistics of the Slave Trade to Cuba, 1790–1867,” Journal of Latin American Studies 3 (1971): 131–49Google Scholar; Deveau, Jean-Michel, “Pedagogy of the History of the Slave Trade,” in  From Chains to Bonds: The Slave Trade Revisited, ed. Diene, Doudou (Paris: UNESCO, 2001), 397–415 Google Scholar; and Marques, Leonardo, “The Contraband Slave Trade to Brazil and the Dynamics of U.S. Participation, 1831–1856,” Journal of Latin American Studies 47 (2015): 659–84CrossRefGoogle Scholar.

3. On the politics surrounding the 1807 bill, see W. E. B. Du Bois, Suppression, 74–86; Robinson, Donald L., Slavery in the Structure of American Politics, 1765–1820 (New York: Harcourt Brace Jovanovich, 1971), 298–337 Google Scholar; Lynd, Staughton, Class, Conflict, Slavery and the American Constitution (Indianapolis: Indiana University Press, 1967), 185–213 Google Scholar; Freehling, William W., The Road to Disunion, Vol. 1, Secessionists at Bay, 1776–1854 (Oxford: Oxford University Press, 1990), 121–43Google Scholar; Finkelman, Paul, “Slavery and the Constitutional Convention: Making a Covenant with Death,” in Beyond Confederation: Origins of the Constitution and American National Identity, ed. Beeman, Richard, Botein, Stephen, and Carter, Edward C. II (Chapel Hill: University of North Carolina Press, 1987), 195–217 Google Scholar; and Mason, Mathew, “Slavery Overshadowed: Congress Debates Prohibiting the Atlantic Slave Trade to the United States, 1806–1807,” Journal of the Early Republic 20 (2000): 59–81 Google Scholar.

4. Rappleye, Charles, Sons of Providence: The Brown Brothers, the Slave Trade, and the American Revolution (New York: Simon & Shuster, 2006), 269Google Scholar, 301–12, 327–29, 337, 338; Du Bois, Suppression, 108–10 (second quotation, 110); Thomas, Slave Trade, 552 (first quotation); Canney, Africa Squadron, 4–5; Head, David, “Slave Smuggling by Foreign Privateers: The Illegal Slave Trade and the Geopolitics of the Early Republic,” Journal of the Early Republic 33 (2013): 433–62Google Scholar.

5. McMillin, James A., The Final Victims: Foreign Slave Trade to North America (Columbia: University of South Carolina Press, 2004), 90Google Scholar; Mouser, Bruce L., American Colony on the Rio Pongo: The War of 1812, the Slave Trade, and the Proposed Settlement of African Americans, 1810–1830 (Trenton: Africa World Press, 2013), 25–26 Google Scholar, 82, 84, 86, 95–97; Schafer, Daniel L., Zephaniah Kingsley, Jr. and the Atlantic World (Gainesville: University of Florida Press, 2013)Google Scholar, 70, 105, 117–18, 143; and Sparks, Randy J., Africans in the Old South: Mapping Exceptional Lives Across the Atlantic World (Cambridge: Harvard University Press, 2016), 57–80 CrossRefGoogle Scholar.

6. Hamilton, Stanislaus Murray, ed., The Writings of James Monroe: Including a Collection of His Public and Private Papers and Correspondence Now for the First Time Printed, vol. 6 (New York: G. P. Putnam's Sons, 1902), 35–39 Google Scholar (quotation, 36); and Landers, Jane G., Atlantic Creoles in the Age of Revolutions (Cambridge, MA: Harvard University Press, 2010), 129–37Google Scholar.

7. Landers, Atlantic Creoles, 136 (quotation); “Spanish Patriots,” Reflector (Milledgeville, GA) April 7, 1818, 1; and Shingleton, Royce Gordon, “David Brydie Mitchell and the African Importation Case of 1820,” The Journal of Negro History 58 (1973): 327–40Google Scholar.

8. Davis, William C., The Pirates Laffite: The Treacherous World of the Corsairs of the Gulf (New York: Harcourt, Inc. 2005), 52–67 Google Scholar, 75–82, 352–76.

9. W. S. Macleay to Lord Palmerston, January 1, 1836; Edward Schenley to Palmerston, January 2, 1837, April 8, 1837, FO 313/14, The National Archives of the U.K. (hereafter TNA); Memucan Hunt to John Forsyth, July 18, 1837, Texas Slavery Project, http://www.texasslaveryproject.org/sources/ROTDC/display.php?f=TSP0189.xml (December 1, 2015); “New Slave Trade,” Farmer's Cabinet (Amherst, NH), August 15, 1818, 2; Obadele–Starks, Ernest, Freebooters and Smugglers: The Foreign Slave Trade in the United States After 1808 (Fayetteville: University of Arkansas Press, 2007), 61–63 Google Scholar, 91–94; and Andreas, Peter, Smuggler Nation: How Illicit Trade Made America (Oxford: Oxford University Press, 2013), 147–48Google Scholar.

10. Du Bois, Suppression, 118–30; Canney, Africa Squadron, 7, 15–22; and Thomas, Slave Trade, 616.

11. For examples see “Congress,” New York Daily Advertiser, January 5, 1818, 2, “Congress,” January 28, 1819, 2, June 2, 1820, 2; “Congress,” American and Commercial Daily Advertiser (Baltimore, MD), January 2, 1818, 2Google Scholar; “Congress,” City Gazette And Daily Advertiser (Charleston, SC), January 10, 1818, 2Google Scholar; “U. S. House of Representatives,” City of Washington Gazette, May 4, 1818, 2; “Subject of Slavery Concluded,” Boston Recorder, June 16, 1818, 2; “Congress,” The American Beacon and Norfolk & Portsmouth Daily Advertiser, March 6, 1819, 2, “Congress,” December 13, 1819, 2, May 15, 1820, 2, “The Slave Trade,” June 22, 1820, 3, “Congressional Proceedings,” July 3, 1820, 2; Lancaster (Penn.) Journal, May 22, 1818, 3; Albany Argus, September 8, 1818, 3; “Slave Trade,” New Bedford Mercury, January 1, 1819, 1; “Slave of African Slaves,” Rhode Island American, and General Advertiser, April 30, 1819, 2, “Circuit Court,” November 16, 1819, 2, “Correspondence,” November 10, 1820, 2, “Circuit Court,” November 16, 1821, 2; “Negotiation Between Great Britain and the United States for the Extinction of the Slave Trade,” Mercantile Advertiser (New York, NY), August 27, 1819, 2Google Scholar; “Cape de Verds,” Portsmouth Oracle, October 16, 1819, 2; “On the Slave Trade and Slavery,” Daily National Intelligencer (Washington, DC), December 4, 1819, 2Google Scholar; “Sixteenth Congress,” Providence (RI) Gazette, January  3, 1820, 2, Another Uniform Republican, “To the Hon. Samuel Eddy in Response to His Address,” August 21, 1820, 1; “Slave Trade in Portugal,” The New York Columbian, February 26, 1820, 2; “From the National Intelligencer,” The American (New York, NY) May 11, 1820, 3; “Mail Briefs, June 2,” Newport Mercury, June 10, 1820, 2; “Congress,” Baltimore Patriot, May 15, 1820, 2; and “U. S. Congress,” Providence (RI)  Patriot, February 17, 1821, 2.

12. Thomas, Slave Trade, 593; E. Ayers to Secretary of the Navy, February 24, 1823 reproduced in Philadelphia Yearly Meeting of the Religious Society of Friends, A View of the Present State of the African Slave Trade Published by Direction of a Meeting Representing the Religious Society of Friends in Pennsylvania, New-Jersey, & c.  (Philadelphia: William Brown, 1834), 30–31 Google Scholar; “United States Ship Cyane off Sierra Leone, April 10, 1820,” United States Congress, American State Papers: Documents, Legislative and Executive of the Congress of the United States, From the First Session of the First Congress to the Second Session of the Thirty-Fifth Congress, Inclusive: Commencing March 4, 1789 and Ending March 3, 1859, Foreign Relations, vol. 5 (Washington, DC: Gales and Seaton, 1858), 94–95 (second quotation); Du Bois, Suppression, 125–27; Zeuske, Michael, Amistad: A Hidden Network of Slavers and Merchants (Princeton, N.J.: Markus Wiener Publishers, 2015), 112–21Google Scholar, 156, 172, 188, 198–202; Trans-Atlantic Slave Trade Database http://www.slavevoyages.org/tast/assessment/estimates.faces (October 15, 2010); “Buxton on the Slave Trade,” The Emancipator, July 4, 1839, 40; “The Hispano-American Slavers – Extraordinary Developments,” The North American (Philadelphia, PA), June 19, 1839, 2.

13. H. T. Kibber and R. F. Jameson to Foreign Office, May 29, 1824, Letters of the Havana Commission, FO 313/9, TNA.

14. Marquese, Rafael, Parron, Tâmis, and Berbel, Márcia, Slavery and Politics: Brazil and Cuba, 1790–1850 (Albuquerque: University of New Mexico Press, 2006), 155–56Google Scholar, 240; Martinez, Jenny S., The Slave Trade and the Origins of International Human Rights Law (Oxford: Oxford University Press, 2011), 74, 84, 91–92 Google Scholar; Kielstra, Paul Michael, The Politics of Slave Trade Suppression in Britain and France, 1814–48: Diplomacy, Morality and Economics (London: McMillan Press, 2000), 158–59Google Scholar, 175–76, 182, 238, 248; Horne, Gerald, Deepest South: The United States, Brazil, and the African Slave Trade (New York: New York University Press, 2007), 23Google Scholar; and “Assessing the Slave Trade: Estimates,” Trans-Atlantic Slave Trade Database.

15. As one editorial warned, “under the pretext of the search for slaves, American citizens might be impressed, and our merchant vessels be again annoyed, and our citizens insulted, by the insolence … of the British Navy.” Another warned that accepting the Right of Search would demonstrate that “we are reduced to a most humiliating condition … .” Du Bois, Suppression, 133; Canney, Africa Squadron, 24; Wood, Empire of Liberty, 640–41, 659–60; Rappleye, Sons of Providence, 269; “The Convention with Great Britain,” Portland (Maine) Advertiser, June 5, 1824 (first quotation), 2; “Mr. Adams to Mr. Canning,” National Gazette (Philadelphia, PA), April  6, 1824, 2, and “Foreign Politics,” April 26, 1824; “Surrender of the Right of Search, No. 1,” City Gazette (Charleston, SC), June 10, 1824, 2; and L., “For the Patriot,” Providence (R.I.) Patriot, July 3, 1824; Martinez, Jenny S., The Slave Trade, (Oxford: Oxford University Press, 2012), 44–66 Google Scholar.

16. E. W. Schenley to Palmerston, October 25, 1836, Letters of the Havana Commission, TNA.

17. Kennedy to Palmerston, October 27, 1839, Letters of the Havana Commission, TNA.

18. Trist to Kennedy, July 2, 1839, Letters of the Havana Commission, TNA.

19. Horne, Deepest South, 29–31, 57–58, 67–84; Slacum to Webster, May 1, 1842, Congress of the United States, Public Documents Printed by Order of the Senate of the United States, First Session of the Twenty-Eighth Congress, Begun and Held at the City of Washington, December 4, 1843In the Sixty-Eighth Year of the Independence of the United States, 7 vols. (Washington, DC: Gales and Seaton, 1844), IV: 23–25 Google Scholar. See also the lengthy correspondence regarding the Brazilian slave trade, 1–30.

20. Buchanan to Paulding, July 3, 1840, Correspondence of the Secretary of the Navy Relating to African Colonization, 1819–1844, RG 45, Reel 1, National Archives, Washington, DC (hereafter National Archives). See, for example, the logs of Enoch Richmond Ware who was supercargo of the brig Robert owned by New York merchants, documenting an extensive trade with the Euro-African slave dealers on the Rio Pongo and the Rio Nunez on several voyages from 1840 to 1847. Bennett, Norman and Brooks, George E. Jr., eds., New England Merchants in Africa: A History Through Documents, 1802 to 1865 (Boston: Boston University Press, 1965), xxxi, 283–339 Google Scholar. Zeuske, Amistad, 156. On the Equipment Clause, see Jenny S. Martinez, The Slave Trade, 91–92.

21. Foote to Perry, February 6, 1844, Letters Received by the Secretary of the Navy from Commanding Officers of Squadrons, 1841–1886, African Squadron, April 10, 1843–April 29, 1845, M89, National Archives; and Law, Robin, Ouidah: The Social History of a West African Slaving Port, 1727–1892 (Athens: Ohio University Press, 2004), 190–91Google Scholar.

22. Perry to Foote, March 4, 1844, Letters Received by the Secretary of the Navy from Commanding Officers of Squadrons, National Archives.

23. “The Slave Trade,” The Emancipator, July 4, 39, and October 31, 1839, 106–107; “The Alleged Slavers,” Albany Evening Journal, June 13, 1839, 2; “From the N. Y. Morning Herald of June 14. The Hispano-American Slavers – Extraordinary Developments,” The Liberator, June 28, 1839 (quotations); and Howard, Warren S., American Slavers and the Federal Law, 1837–1862 (Berkeley and Los Angeles: University of California Press, 1963)Google Scholar.

24. Harrison was a merchant in Baltimore with a Counting Room on one of the city's docks. He was an also auctioneer who advertised Cuban goods for sale. “Notice,” Baltimore Patriot, September 1, 1823, 2; “Will Be Sold,” Richmond Enquirer, November 26, 1839, 3; “From Our Correspondent,” The Sun (Baltimore), January 30, 1840, 2. Price owned a shipyard in Baltimore. “Revenue Cutter,” Easton [Maryland] Gazette, December 16, 1837, 3.

25. House of Commons Sessional Papers, Class D. Correspondence with Foreign Powers, Not Parties to Conventions Giving Right of Search of Vessels Suspected of the Slave Trade. From June 1st to December 31, 1839 Inclusive (London: William Clowes and Sons, 1840), 175; House of Commons Sessional Papers, Class A. Correspondence with the British Commissioners at Sierra Leone, the Havana, Rio de Janeiro, and Surinam Relating to the Slave Trade, From June 30th to December 31st, 1839 (London: William Clowes and Sons, 1840), 32–33, 134–35. British officials in Havana notified their government of the Eagle's departure on a slave voyage and identified her as an American vessel. She was one of twenty United States ships leaving the port in that year out of a total of seventy-one. The Clara was also on that list. The largest number of ships, forty-one, were Portuguese. “List of Vessels which Have Sailed to the Coast of Africa during the Year 1838,” Archives of the Havana Slave Commission, FO 313/1, TNA. The same official identified the Wyoming, Catherine, and Butterfly the following year when twenty-three United States slave ships left Havana out of a total of fifty-nine; twenty-six were Portuguese. “List of Vessels Dispatched from the Port of Havana for the Coast of Africa during the year 1839,” Archives of the Havana Slave Commission, FO 313/1, TNA. For further details on the capture of the Eagle and the Clara see George Elliott to Charles Wood, May 30 and June 1, 1839, and the attached documents labeled R113; Admiralty Records, ADM 1/85, TNA. “A Return of Vessels engaged in the Slave Trade searched and detained by HMS Lilly, John Reeve, Esq. Commander between 2nd January and the 2nd February 1839;” ADM 1/85; Elliott to Wood, February 13, 1839, ADM 1/85, TNA.

26. Army and Navy Chronicle, IX, November 21, 1839, 334–35; House of Commons Sessional Papers, Class D. Correspondence with Foreign Powers, Not Parties to Conventions … 1839, 175; House of Commons Sessional Papers, Class A. Correspondence with the British Commissioners at Sierra Leone … 1839, 32–33, 134–35. The slave trade from Lagos was much higher in the period after 1808 than before, and peaked only in the 1840s. Most of those slaves went to Brazil, but trade to Cuba took off after 1830. It was not uncommon to see Cuban slave traders and their agents, such as Andreo, not only ship's captains, in Lagos after that date. Mann, Kristin, Slavery and the Birth of an African City: Lagos, 1760–1900 (Bloomington: Indiana University Press, 2007), 61, 99Google Scholar.

27. “Cruise of the H. B. M. Brig Buzzard,” The Emancipator, November 21, 1839, 1; “The Slave Ships,” The North American (Philadelphia), June 13, 1839, 2, and “The Hispano-American Slavers – Extraordinary Developments,” June 19, 1839, 2; “Case of the Butterfly,” New York Spectator, August 8, November 7, 1839, 1; “The Schooner Butterfly,” August 3, 1840, 2; “The African Slave Trade,” Daily National Intelligencer (Washington, DC), July 13, 1839, 3; “U. S. Circuit Court,” The Sun (Baltimore), December 7, 1839, 1–2, “Circuit Court,” April 25, 1840, 1; Howard, American Slavers, 39–40, 224; and Thomas, Slave Trade, 661.

28. “The Slave Trade – Fitting Out Vessels in the Port of New York,” New York Herald, July 14, 1856 (quotation), 4. Lincoln was known for his leniency. He reviewed 456 civil cases and issued 375 pardons. Four of the cases he reviewed were slave trade cases, and he issued a pardon in only one of them. Soodalter, Ron, Hanging Captain Gordon: The Life and Trial of an American Slave Trader (New York: Washington Square Press, 2006), 160Google Scholar; Du Bois, Suppression, 97–102, 125–26; and Howard, American Slavers, 192–205.

29. Wirt to Crowinshield, April 16, 1818, Letters Received by the Secretary of the Navy from the Attorney General of the U.S. Containing Legal Opinions and Advice, 1807–1825, Office of Naval Records and Library, RG 45, National Archives. Fish, Peter Graham, Federal Justice in the Mid-Atlantic South: United States Courts from Maryland to the Carolinas, 1789–1835 (Washington, DC: Administrative Office of the United States Courts, 2016), 286–93Google Scholar.

30. Note, “International Norms and Politics in the Marshall Court's Slave Trade Cases,” Harvard Law Review, 128 (2015): 1184–205Google Scholar; Wiecek, William M., “Slavery and Abolition Before the United States Supreme Court,” in Abolitionism and American Law, ed. McKivigan, John R. (New York: Garland Publishing, 1999), 134–40Google Scholar; and Mason, William P., Report of the Case of the Jeune Eugenie, Determined in the Circuit Court of the United States, For the First Circuit, at Boston, December, 1821 (Boston: Wells and Lilly, 1822)Google Scholar. On the Antelope case, see Bryant, Jonathan M., Dark Places of the Earth: The Voyage of the Slave Ship Antelope (New York: W.W. Norton, 2015)Google Scholar.

31. Congress of the United States, Public Documents Printed by Order of the Senate of the United States, First Session of the Twenty-Ninth Congress, Begun and Held at the City of Washington, December 1, 1845 In the Seventieth Year of the Independence of the United States, 9 vols. (Washington, DC: Gales and Seaton, 1844)Google Scholar, VIII:5 (first and second quotations); Congressional Globe: Containing Sketches of the Debates and Proceedings of the Third Session of the Twenty-Seventh Congress (Washington, DC: The Globe Office, 1843), 23Google Scholar (third quotation); Thomas, Slave Trade, 662; and Du Bois, Suppression, 144–47.

32. The Sun, April 25, 1840; Vermont Phoenix, February 21, 1840 (first quotation); The Telegraph (Gloucester, MA), February 15, March 27, 1840; Southern Patriot (Charleston, SC); March 21, 1840; The Liberator, July 2 (second quotation), December 10, 1841; Wisconsin Democrat (Madison, WI), August 7, 1843 (third quotation); “Consul Trist,” New York Spectator, April 6, 1840, 1; Jackson to Polk, December 10, 1844 in Polk, James Knox, Cutler, Wayne, Hall, Robert G., eds., Correspondence of James K. Polk: September–December 1844 (Knoxville: University of Tennessee Press, 1993), 418–19Google Scholar. J. Kennedy to Palmerston, January 17, 1839; October 27, 1839; June 15, 1840; Trist to Kennedy, January 8, 1839; FO 313/1, TNA.

33. Forsyth to Fox, February 12, 1840, House of Commons, Accounts and Papers: Twenty-One Volumes: Session 16 January–11 August, 1840, Vol. XLVII, Class B: Correspondence with Foreign Powers, Relating to the Slave Trade, 1840 (London: William Clowes and Sons, 1840), 56Google Scholar (first quotation); Palmerston to Stevenson, August 27, 1841, 259–60 (second and third quotations); Stevenson to the Earl of Aberdeen, September 10, 1841, 263–67 (fourth quotation); Du Bois, Suppression, 144–45 (first quotation, 145); Thomas, Slave Trade, 662–64; and Wayland, Francis F., “Slavebreeding in America: The Stevenson–O'Connell Imbroglio of 1838,” Virginia Magazine of History and Biography, 50 (1942), 47–54 Google Scholar.

34. “Our Difficulties with England-the Case of the Creole-the Right of Search,” Weekly Herald (New York), March 19, 1842 Google Scholar (quotation), 205; “Illegal Seizures,” New York Spectator, January 23, 1841, 2; “The Right of Search,” February 2, p. 1, “The Right of Search Treaty,” April 27, p. 1, “THe Negotiations,” July 30, 1842, p. 1; “Right of Search,” Norfolk Democrat, April 8, 1842, 2; “American Slavers,” National Daily Intelligencer, August 1, 1839, 2; “The Slave Trade at Rio Janeiro,” Alexandria (Va.) Gazette, February 5, 1841, 2; and Thomas, Slave Trade, 663.

35. “A Treaty,” New York Spectator, August 24, 1842, 3.

36. “Foreign,” New Bedford (Mass.) Register, January 26, 1842, 2; “Lord Ashburton,” Vermont Gazette, March 1, 1842, 2; “Foreign,” New York Spectator, August 24 and “The Treaty,” August 31, 1842, 1; “The Treaty,” The Sun, August 23, 1842 (first and second quotations), 2; “The Slave Trade,” North American (Philadelphia, PA), October 18, 1842, 2Google Scholar; “The Treaty,” Public Ledger (Philadelphia, PA), September 12, 1842 Google Scholar (third quotation), 1; and Jones, Howard, To the Webster–Ashburton Treaty: A Study in Anglo-American Relations, 1783–1843 (Chapel Hill:  University of North Carolina Press, 1977)Google Scholar.

37. Reed to Bancroft, September 16, 1846, Letters Received by the Secretary of the Navy from Commanding Officers of Squadrons, 1841–1886, African Squadron, April 10, 1843 to April 29, 1845, National Archives.

38. Mayo to James C. Dobbin, July 24, 1854 (first quotation), September 29, 1854 (second quotation), Letters Received by the Secretary of the Navy from Commanding Officers of Squadrons, 1841–1886, African Squadron, January 4, 1853 to June 4, 1855, National Archives.

39. Grey to Conover, undated, Letters Received by the Secretary of the Navy from Commanding Officers of Squadrons, 1841–1886, African Squadron, May 28, 1859–February 13, 1860, National Archives.

40. Canney, Africa Squadron, 222–27.

41. Eltis, David, “Was Abolition of the U. S. and British Slave Trade Significant in the Broader Atlantic Context?,” William and Mary Quarterly 3rd Series, LXVI (October 2009), 720–24Google Scholar, 729 (quotation, 720).

42. On the internal slave trade in the United States, see Tadman, Michael, Speculators and Slaves: Masters, Traders and Slaves in the Old South (Madison: University of Wisconsin Press, 1989)Google Scholar; Johnson, Walter, Soul by Soul: Life Inside the Antebellum Slave Market (Cambridge: Harvard University Press, 1999)Google Scholar; Johnson, , River of Dark Dreams: Slavery and Empire in the Cotton Kingdom (Cambridge: Belknap Press, 2013)Google Scholar; and Deyle, Stephen, Carry Me Back: The Domestic Slave Trade in American Life (New York: Oxford University Press, 1999)Google Scholar.

43. Tomich, Dale W., Through the Prism of Slavery: Labor, Capital, and World Economy (London: Rowman & Littlefield Publishers, 2004), 67–68 Google Scholar; Klein, Herbert S., and Luna, Francisco Vidal, Slavery in Brazil (Cambridge: Cambridge University Press, 2010), 96–98 Google Scholar; and Schwart, Stuart B., Slaves, Peasants, and Rebels: Reconsidering Brazilian Slavery (Urbana-Champagne: University of Illinois Press, 1996), 73–76 Google Scholar.

44. Drescher, Seymour, Abolition: A History of Slavery and Antislavery (Cambridge: Cambridge University Press, 2009), 316Google Scholar.

45. Blackburn, Robin, The American Crucible: Slavery, Emancipation and Human Rights (London: Verso Press, 2011), 296–97, 309Google Scholar; Baptist, Edward, The Half Has Never Been Told: Slavery and the Making of American Capitalism (New York: Basic Books, 2014), 128–32Google Scholar; Tomich, Through the Prism of Slavery, 56–70.