Peter Cartwright,, also known as "Uncle Peter", "Backwoods Preacher", "Lord's Plowman", "Lord's Breaking-Plow", and "The Kentucky Boy", was an American Methodist, revivalist, preacher, in the Midwest, as well as twice an elected legislator in Illinois. Cartwright, a Methodist missionary, helped start America's Second Great Awakening, personally baptizing twelve thousand converts. Opposed to slavery, Cartwright moved from Kentucky to Illinois, and was elected to the lower house of the Illinois General Assembly in 1828 and 1832. In 1846 Abraham Lincoln defeated Cartwright for a seat in the United States Congress. As a Methodist circuit rider, Cartwright rode circuits in Kentucky and Illinois, as well as Tennessee, Indiana and Ohio. His Autobiography (1856) made him nationally prominent.

The Second Great Awakening was a Protestant religious revival during the late 18th to early 19th century in the United States. It spread religion through revivals and emotional preaching and sparked a number of reform movements. Revivals were a key part of the movement and attracted hundreds of converts to new Protestant denominations. The Methodist Church used circuit riders to reach people in frontier locations.