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Dodd, Jordan. Kentucky Marriages, 1802-1850 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc., 1997.
Donald, David Herbert. Lincoln. New York: Simon & Schuster, 1996.Chapter 1.
Gladow, Diane and Dean. Updated Crume Family Information. Feb 2010.
Gladow, Diane McAdams. "A Journey of Voices: Stewards of the Land." College Station, Texas: VirtualBookworm.com, 2012.
Harrison, John Houston (1935). Settlers By the Long Grey Trail.