Clarkson, looking south towards Clarkson Presbyterian Church
|Elevation||1,181 ft (360 m)|
|Time zone||UTC-5 (Eastern (EST))|
|• Summer (DST)||UTC-4 (EDT)|
|Area code(s)||330, 234|
|GNIS Feature ID||1056809|
Clarkson is located at  The majority of residences are clustered at the intersection of Clarkson and Sprucevale Roads (County Highways 426 and 428).(40.7470065, -80.6134048).
Clarkson was platted in February 1816 by Robert Hanna, who moved there in a conestoga wagon with his wife. It was surveyed by William Heald. Hanna built and resided in a log tavern at the intersection of two roads. This building was later known as the Edward McGinnis tavern.
A post office was established in Clarkson in 1833 and remained until 1935.
An early settler and businessman was Milo Warrick who, in 1840, was a cabinet maker and undertaker in Clarkson. His son, Clement Vlandingham Warrick, opened a general store in Clarkson in 1885. He established the first Standard Oil dealership in Ohio, holding vendor's license Number 1.
- Clement Vlandingham Warrick - First standard oil dealer in Ohio.
- Almira Park - the mother of Hannah Milhous Nixon and maternal grandmother of President Richard Nixon.
- U.S. Geological Survey Geographic Names Information System: Clarkson
- McCord, William B. (1905). History of Columbiana County, Ohio and Representative Citizens. Biographical Publishing Company. p. 303.
- Mack, Horace (1879). History of Columbiana County, Ohio: With Illustrations and Biographical Sketches of Some of Its Prominent Men and Pioneers. Unigraphic. p. 198.
- Gaston, Philander. "Pioneer days of the little rural center of Clarkson [Columbiana County, Ohio, 1816-1873];portrayed by Philander Gaston (one of the oldest residents).".
- Croly, Herbert David (1912). Marcus Alonzo Hanna: his life and work. The Macmillan Company. p. 3.
- Rice, Charles Elmer (1905). A history of the Hanna family: Being a genealogy of the descendants of Thomas Hanna and Elizabeth (Henderson) Hanna, who emigrated to America in 1763 (Google eBook). A. Pim & son.
- "Clarkson Post Office (historical)". Geographic Name Information System (GNIS). USGS. Retrieved 26 February 2011.
- "89-Year Old Storekeeper Sets a Mark". Youngstown (Ohio) Vindicator. February 21, 1953.
- "Kansas City Massacre—Charles Arthur "Pretty Boy" Floyd". Federal Bureau of Investigation, United States Government. Retrieved 26 February 2011.
- Burrough, Bryan (2009). Public Enemies: America's Greatest Crime Wave and the Birth of the FBI, 1933-34. Penguin. ISBN 978-0-14-311586-1.
- "Beaver Creek State Park". Ohio Department of Natural Resources. Retrieved 27 February 2011.