Theodore Sedgwick was an American attorney, politician, and jurist who served in elected state government and as a delegate to the Continental Congress, a U.S. representative, and a senator from Massachusetts. He served as President pro tempore of the United States Senate from June to December 1798. He also served as the fourth speaker of the United States House of Representatives. He was appointed to the Massachusetts Supreme Judicial Court in 1802 and served there for the rest of his life.

Elizabeth Freeman, also known Mumbet, was one of the first enslaved African Americans to file and win a freedom suit in Massachusetts. The Massachusetts Supreme Judicial Court ruling, in Freeman's favor, found slavery to be inconsistent with the 1780 Constitution of Massachusetts. Her suit, Brom and Bett v. Ashley (1781), was cited in the Massachusetts Supreme Judicial Court appellate review of Quock Walker's freedom suit. When the court upheld Walker's freedom under the state's constitution, the ruling was considered to have implicitly ended slavery in Massachusetts.