As Adam Arenson has written about lately in Disunion in the New York Times, Missouri was on edge in Spring 1861, as a secessionist governor tangled with the state’s Unionist majority. Missouri was already a violent place, as the scene of a nasty war in the late 1830s with the Mormons and even bloodier strife over slavery with neighboring Kansas in the 1850s. This irregular warfare would carry on into the Civil War, becoming legendary for its viciousness and brutality.
Hence, it is not surprising in Spring 1861 that Missouri’s slaveholders were especially nervous. While it is possible to dismiss the slave insurrection fear in other slave states as racist paranoia, because of its history, the possibility of violence at that moment involving slavery in Missouri was all too real. Kansas and its freesoil Jayhawkers, in particular, having been the target of pro-slavery forces based in Missouri in the late 1850s, could be creditably suspected as the agents who would seek to unleash Missouri’s slaves against their owners. So in need of federal protection more than other border states, the federal government’s stance toward slavery in Missouri was particularly critical to the state’s slaveholders and would do much to decide whether they stayed loyal to the Union or listened to the arguments of secessionist governor, Claiborne Fox Jackson.
The leading representative of the federal government in Missouri in Spring 1861 was Brigadier General William S. Harney, who commanded the U.S. Army’s Department of the West from Jefferson Barracks in St. Louis. Born in Tennessee, by the time of the Civil War he had been an army officer for over four decades and was a stalwart Unionist, who considered Missouri his home. Hence, he was horrified by the violence breaking out within Missouri that spring between the state’s pro-Union majority and aggressive pro-Confederate minority. Harney tried to keep the peace between the two factions, negotiating a questionable compromise that while it brought a temporary truce soon would get him recalled to Washington, D.C. and relieved of his command.
But his determination to keep Missouri in the Union and avoid violence with pro-secession elements explains his quick response when confronted with a letter from Thomas T. Gantt, Provost Marshall General of the District of Missouri. On May 14, 1861, Gantt wrote Harney:
The same day, Harney rushed a reply to Gantt, stating:
William S. Harney’s representation of President Lincoln’s position at that point was substantially correct, as was his allusion to General Benjamin Butler’s reaction to the slave insurrection scare in Maryland. However, General Butler was soon to prove not so sympathetic to disloyal slaveholders in Virginia and Harney’s replacement, John C. Fremont, actually would proclaim slave emancipation in Missouri, greatly angering white public opinion in Missouri even though his proclamation was quickly overturned by the Lincoln administration. So while Harney’s letter was prudent and proper, it was blissfully unaware of the social revolution soon to be unleashed by the civil war then gaining momentum in the nation.