Mason Mathews (December 15, 1803 – September 16, 1878) was an American merchant and politician in the U.S. State of Virginia (present-day West Virginia). He served seven years in the Virginia House of Delegates, representing Greenbrier County from 1859–1865 as a Whig. This period included the secession of Virginia and the resulting American Civil War of 1861–1865. During wartime, Mathews made field visits to the camps of Confederate generals Henry A. Wise and John B. Floyd to assess a public feud between the two men regarding the Confederate loss at the Battle of Carnifex Ferry in the Western Virginia Campaign. When Mathews' home of Greenbrier County was taken into the new State of West Virginia in 1863, he continued to travel to Richmond, Virginia to represent Greenbrier County in the sta