Alexander John Marshall was a Virginia lawyer, businessman and politician who served many years as Clerk of Fauquier County, helped secure construction of the Rappahannock Canal, and was a Virginia state senator during the American Civil War (1862–1865).
- Occupation
- politician
- Position held
- member of the State Senate of Virginia
- Citizenship
- United States
- Born
- February 21, 1803, 1803
- Died
- February 24, 1882, 1882