As the secession crisis deepened, Missouri attempted to follow a policy of armed neutrality, in which the state would not support either side in the war but remain in the Union. A special election in February established a
Missouri Constitutional Convention to determine the relationship between Missouri and the United States. The convention voted against
secession and affirmed the state's neutrality. The outbreak of hostilities at
Fort Sumter led to unrest in Missouri. Secessionists seized the
Liberty Arsenal a week later. Governor
Claiborne Jackson called up the state militia for drill in St. Louis and to receive some arms clandestinely obtained from the Confederacy. This resulted in a confrontation with the aggressive Union commander
Nathaniel Lyon, who forced the surrender of the militia, in what was called the
Camp Jackson Affair. After a deadly riot ensued, the Missouri legislature authorized the reorganization of the militia into the
Missouri State Guard, controlled by the governor. General
William Harney reached an agreement with the new Missouri State Guard commander
Sterling Price, known as the
Price-Harney Truce. Lincoln appointed Lyon to replace Harney as Commander of the
Department of the West. During negotiations among the governor, Lyon, and Price, Lyon would not accept the governor's proposed limitations on Federal troops and volunteers. The meeting ended abruptly with Lyon declaring, "Rather than concede to the state of Missouri….the right to dictate to my government in any matter however unimportant, I would see you, and you, and you, and you, and you, and every man, woman, and child in the state dead and buried. This means war." As the Missouri government fled into exile, Lyon rapidly captured the capitol at
Jefferson City, Missouri a few days later in mid-June 1861. The pro-Union members of the Missouri Constitutional Convention reconvened in July 1861 to consider the status of the state. The convention declared the governor's office and state legislative offices to be vacant and appointed Gamble as governor of a
provisional government of Missouri on August 1. Gov. Jackson called a session of the
General Assembly in
Neosho, Missouri, and, in late October with a
dubious quorum, passed an ordinance of secession. Although secessionists considered Gamble an unelected puppet of the Union forces, he opposed harsh Union treatment of the state. For instance, he protested to President Lincoln about the
Fremont Emancipation, which unilaterally freed the state's slaves in 1861 and imposed martial law. Lincoln agreed to Gamble's request to overturn this decision, rescinded the emancipation, and removed
John C. Fremont from command. Gamble died in office at his home in St. Louis on January 31, 1864, after suffering complications from an infection of a broken arm. He is buried at
Bellefontaine Cemetery in St. Louis. ==References==