Harriet Robinson Scott in the context of "Fort Snelling"

Dred Scott (c. 1799 – September 17, 1858) was an enslaved African-American man who, along with his wife, Harriet, unsuccessfully sued for the freedom of themselves and their two daughters, Eliza and Lizzie, in the Dred Scott v. Sandford case of 1857, popularly known as the "Dred Scott decision". The Scotts claimed that they should be granted freedom because Dred had lived in Illinois and the Wisconsin Territory for four years, where slavery was illegal, and laws in those jurisdictions said that slave holders gave up their rights to slaves if they stayed for an extended period.

In a landmark case, the United States Supreme Court decided 7–2 against Scott, finding that neither he nor any other person of African ancestry could claim citizenship in the United States, and therefore Scott could not bring suit in federal court under diversity of citizenship rules. Scott's temporary residence in free territory outside Missouri did not bring about his emancipation, because the Missouri Compromise, which made that territory free by prohibiting slavery north of the 36°30′ parallel, was unconstitutional because it "deprives citizens of their [slave] property without due process of law".

Francis Butter Murdoch (March 21, 1805 – May 10, 1882) was an American attorney and newspaper publisher. As a lawyer, he practiced law in Pennsylvania, Michigan, Illinois and Missouri, and initiated freedom suits for Dred Scott and Harriet Robinson Scott in 1846. Between 1840 and 1847, Murdoch filed nearly one-third of all freedom suits in St. Louis, and secured freedom for many of his clients who had been enslaved, including Polly Berry and her daughter, Lucy A. Delaney. Before that, Murdoch was the city attorney in Alton, Illinois, where he unsuccessfully prosecuted rioters who killed Elijah Parish Lovejoy, an anti-slavery newspaper publisher, in 1837.

After moving to California in 1852, Murdoch became a newspaper publisher and editor of the San Jose Telegraph, which later became The Mercury News, and founded the San Jose Patriot.