David Herbert Donald (1995). Lincoln. New York: Touchstone. pp. 20, 23.Wayne Soini (2022). Abraham Lincoln, American Prince; Ancestry, Ambition and the Anti-Slavery Cause. Jefferson, N.C.: McFarland & Company, Inc. pp. 47–56].
Louis Austin Warren (1933). The Shipley ancestry of Lincoln's mother. Lincolniana Publishers. pp. 204–205. (Reprint from Indiana Magazine of History, September 1933.)
Herndon, William (1940). Emanuel Hertz (ed.). The Hidden Lincoln. New York, New York: Blue Ribbon Books. p. 74. (Quoted letter to Ward Lamon written in 1870.)
Connelley, William Elsey; Coulter, E. M. (1922). History of Kentucky, Volume 5. Chicago and New York: American Historical Society. p. 607. ISBN9780598572943. Retrieved October 23, 2018.
John G. Sotos (2012). "Abraham Lincoln's marfanoid mother: the earliest known case of multiple endocrine neoplasia type 2B?". Clinical Dysmorphology. 21 (3): 131–136. doi:10.1097/MCD.0b013e328353ae0c. PMID22504423. S2CID26805372.
Walter J. Daly (March 2006). "'The Slows', The Torment of Milk Sickness on the Midwest Frontier". Indiana Magazine of History. 102 (1): 29–40. JSTOR27792690.
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nih.gov
pubmed.ncbi.nlm.nih.gov
John G. Sotos (2012). "Abraham Lincoln's marfanoid mother: the earliest known case of multiple endocrine neoplasia type 2B?". Clinical Dysmorphology. 21 (3): 131–136. doi:10.1097/MCD.0b013e328353ae0c. PMID22504423. S2CID26805372.
John G. Sotos (2012). "Abraham Lincoln's marfanoid mother: the earliest known case of multiple endocrine neoplasia type 2B?". Clinical Dysmorphology. 21 (3): 131–136. doi:10.1097/MCD.0b013e328353ae0c. PMID22504423. S2CID26805372.