
1860s, Letter to Horace Greeley (1862)
1860s, The Prayer of the Twenty Millions (1862)
1860s, Letter to Horace Greeley (1862)
Speech https://books.google.com/books?id=qMEv8DNXVbIC&pg=PA293&dq=%22Pro-Slavery+Rebellion%22&hl=en&sa=X&ved=0ahUKEwjtq-fys9zSAhWM4yYKHUaWBNIQ6AEIMjAE#v=onepage&q=%22Pro-Slavery%20Rebellion%22&f=false (January 1862)
1860s
Conclusion
1880s, Personal Memoirs of General U. S. Grant (1885)
Context: The cause of the great War of the Rebellion against the United States will have to be attributed to slavery. For some years before the war began it was a trite saying among some politicians that 'A state half slave and half free cannot exist.' All must become slave or all free, or the state will go down. I took no part myself in any such view of the case at the time, but since the war is over, reviewing the whole question, I have come to the conclusion that the saying is quite true.
1860s, The Prayer of the Twenty Millions (1862)
Part II: The Banality of Slavery, page 50.
Going Postal: Rage, Murder, and Rebellion, From Reagan's Workplaces to Clinton's Columbine and Beyond (2005)
Diary (5 June 1862)
Diary and Letters of Rutherford Birchard Hayes (1922 - 1926)
Context: These semi-traitors [Union generals who were not hostile to slavery] must be watched. — Let us be careful who become army leaders in the reorganized army at the end of this Rebellion. The man who thinks that the perpetuity of slavery is essential to the existence of the Union, is unfit to be trusted. The deadliest enemy the Union has is slavery — in fact, its only enemy.
1860s, The Prayer of the Twenty Millions (1862)
“Denounce treason and uphold the cause of the Union.”
As quoted in Indiana in the Civil War Era, 1850–1880: History of Indiana III https://en.wikiquote.org/wiki/Special:BookSources/0871950502 (1995), by Emma Lou Thornbrough. Indianapolis: Indiana Historical Society, p. 102
James M. McPhersonThis Mighty Scourge: Perspectives on the Civil War (2007), Oxford, New York: Oxford University Press. p. 188
2000s
1860s, "If Slavery Is Not Wrong, Nothing Is Wrong" (1864)