L.W. Spratt, « THE PHILOSOPHY OF SECESSION: A SOUTHERN VIEW », South Carolina, (consulté le ) : « Presented in a Letter addressed to the Hon. Mr. Perkins of Louisiana, in criticism on the Provisional Constitution adopted by the Southern Congress at Montgomery, Alabama, BY THE HON. L. W. SPRATT, Editor of the Charleston Mercury, 13th February, 1861. »
Andy Hall, « Not Surprising, Part Deux », sur Dead Confederates: A Civil War Era Blog, : « The states with the largest proportions of slaves and slave-holders seceded earliest. »
Ken Burger, « Too large to be an asylum », sur The Post and Courier, Charleston, Caroline du Sud, Evening Post Publishing Co, (consulté le ) Paragraphe 4