Abraham Lincoln and Treason in the Civil War: The Trials of John MerrymanIn the spring of 1861, Union military authorities arrested Maryland farmer John Merryman on charges of treason against the United States for burning railroad bridges around Baltimore in an effort to prevent northern soldiers from reaching the capital. From his prison cell at Fort McHenry, Merryman petitioned Chief Justice of the Supreme Court Roger B. Taney for release through a writ of habeas corpus. Taney issued the writ, but President Abraham