Gilchrist Porter (November 1, 1817 - November 1, 1894) was a U.S. Representative from Missouri. Born in Windsor, near Fredericksburg, Virginia, Porter received a limited schooling. He studied law. He was admitted to the bar and commenced practice in Bowling Green, Missouri. Porter was elected as a Whig to the Thirty-second Congress (March 4, 1851-March 3, 1853). He was an unsuccessful candidate for reelection in 1852 to the Thirty-third Congress. Porter was elected as an Opposition Party candidate to the Thirty-fourth Congress (March 4, 1855-March 3, 1857). He served as chairman of the Committee on Private Land Claims (Thirty-fourth Congress). Circuit judge 1866-1880. He resumed the practice of law. He died in Hannibal, Missouri, November 1, 1894. He was interred in Riverside Cemetery.
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| Preceded by William Van Ness Bay | Member of the U.S. House of Representatives from Missouri's 2nd congressional district 1851-1853 | Succeeded by Alfred William Lamb |
| Preceded by Alfred William Lamb | Member of the U.S. House of Representatives from Missouri's 2nd congressional district 1855-1857 | Succeeded by Thomas Lilbourne Anderson |
