The Autobiography of Omar ibn Said was written in 1831 and published in The American Historical Review, July 1925, vol. 30, no. 4, pp. 787-795. Alexander Cotheal, treasurer of the American Ethnological Society, translated the autobiography in 1848. J.F. Jameson, editor of The American Historical Review, oversaw the retranslation for publication in 1925. The original manuscript was acquired by the Library of Congress in 2017 and is now digitized - see their Omar ibn Said collection of documents.
Horn, Patrick E. "Coercions, Conversions, Subversions: The Nineteenth-Century Slave Narratives of Omar ibn Said, Mahommah Gardo Baquaqua, and Nicholas Said." a/b: Auto/Biography Studies, vol. 27, no. 1, 2012, pp. 45-66.
Hunwick, John. "'I Wish to be Seen in our Land Called Āfrikā': Umar B. Sayyid's Appeal to be Released from Slavery (1819)." Journal of Arabic & Islamic Studies, vol. 5, 2003-2004, pp. 62-77.
Kahera, Akel. “God’s Dominion: Omar ibn Said’s use of Arabic Literacy as Opposition to Slavery.” The South Carolina Review, vol. 46, no. 2, 2014, pp. 126- 34.
Osman, Ghada and Camille F. Forbes. "Representing the West in the Arabic Language: The Slave Narrative of Omar Ibn Said." Journal of Islamic Studies, vol. 15, no. 3, 2004, pp. 331-343.
Parramore, Thomas C. "Muslim Slave Aristocrats in North Carolina." North Carolina Historical Review, vol. 77, no. 2, 2000, pp. 127-150.
Tamplin, William Costel. "Who Was ‛Umar ibn Sayyid? A Critical Reevaluation of the Translations and Interpretations of the Life." Journal of Arabic and Islamic Studies, vol. 16, 2016, pp.125-147.
Utilize search function to find newspaper articles about Omar ibn Said. Note that he was also called "Uncle Moro, "Moreau," and other variations.