Samuel Wilbur Jr. was an early settler of Portsmouth in the Colony of Rhode Island and Providence Plantations, and one of seven original purchasers of the Pettaquamscutt lands which would later become South Kingstown, Rhode Island. His father, Samuel Wilbore, had been an early settler in Boston who was dismissed from the Massachusetts Bay Colony for supporting the dissident ministers Anne Hutchinson and John Wheelwright, becoming one of the signers of the compact that established the town of Portsmouth. The subject Samuel was willed his father's Rhode Island lands, and appears to have lived in Portsmouth most of his life. He married Hannah Porter, the daughter of another signer of the Portsmouth Compact, John Porter. Beginning in 1656 Wilbur held a number of important positions within the colony, including Commissioner, Deputy to the General Assembly, Assistant to the Governor, and Captain in a Troop of Horse. He wrote his will in August 1678, though it was not probated until more than three decades later. Wilbur was held in high esteem within the colony and was one of a small group of men named in the Royal Charter of 1663, signed by King Charles II of England, and becoming the guiding document of Rhode Island's government for nearly two centuries.

Stephen Arnold Douglas was an American politician and lawyer from Illinois. A senator, he was one of two nominees of the badly split Democratic Party for president in the 1860 presidential election, which was won by Republican candidate Abraham Lincoln. Douglas had previously defeated Lincoln in the 1858 United States Senate election in Illinois, known for the pivotal Lincoln–Douglas debates. He was one of the brokers of the Compromise of 1850 which sought to avert a sectional crisis; to further deal with the volatile issue of extending slavery into the territories, Douglas became the foremost advocate of popular sovereignty, which held that each territory should be allowed to determine whether to permit slavery within its borders. This attempt to address the issue was rejected by both pro-slavery and anti-slavery advocates. Douglas was nicknamed the "Little Giant" because he was short in physical stature but a forceful and dominant figure in politics.