Clapp, S. “Prologue to Sumter: The Beginnings of the Civil War from The John Brown Raid to the Surrender of Fort Sumter by Philip Van Doren Stern; Soldier Life in the Union and Confederate Armies by Philip Van Doren Stern”. Indiana Magazine of History (December 1, 1961). Accessed November 15, 2019. https://scholarworks.iu.edu/journals/index.php/imh/article/view/8844.