Lewis Linn was an American politician and a member of the Democratic Party. He served as a U.S. Senator from Oregon from 1861 until his death in 1868. Linn was known for his advocacy of westward expansion and played a significant role in the development of the Oregon Territory. Born on February 4, 1827, in Missouri, Linn moved to Oregon in the 1850s. He was instrumental in the establishment of the state's political framework and worked on various issues, including land rights and infrastructure development. His contributions helped shape the early governance of Oregon.