Dee ihe ọzọ na paragraf a - Akwụkwọ mbụ Cole dere, "The Whig Party in the South", nwetara ihe nrite Justin Winsor nke American Historical Association na 1912. Okwu Cole banyere Okwu Lincoln nke Ụlọ E Kewara ekewa
Ọ bụ ụlọ ọrụ University of Chicago Press bipụtara ya n'afọ 1923. Akwụkwọ nke atọ ya, nke akpọrọ "Irrepressible Conflict, 1850‐65", bụ akụkọ mmekọrịta, akụnụba, na ọdịbendị nke Agha Obodo ma ndị mbipụta Macmillan bipụtara ya na 1934.