n 1855, the Wisconsin Supreme Court became the only state high court to declare the Fugitive Slave Act unconstitutional, as a result of a case involving fugitive slave Joshua Glover and Sherman Booth, who led efforts that thwarted Glover’s recapture. In 1859 in Ableman v. Booth, the U.S. Supreme Court overruled the state court.

Source: wiki

Unconstitutionality of the Fugitive Slave Act : decisions of the Supreme Court of Wisconsin in the cases of Booth and Rycraft.Other TitleWisconsin reportsContributor NamesWisconsin. Supreme Court.Booth, Sherman M.Rycraft, John.Smith, A. D. (Albert Daniel), 1811-1865.Cushing, Caleb, 1800-1879, former owner.Joseph Meredith Toner Collection (Library of Congress)Created / PublishedMilwaukee : R. King & Co., printers, 1855.Subject Headings-  Booth, Sherman M.–Trials, litigation, etc-  Rycraft, John–Trials, litigation, etc-  United States.–Fugitive slave law (1850)-  Slavery–United States-  Glover, Joshua

Source: Library of Congress

There are over 200 pages to read through