Mark Zatezalo was born on March,16th, 1952, in Steubenville, Ohio to parents Williams and Danica Zatezalo. Delegate Zatezalo received his undergraduate degree in Geology from West Virginia University and his Masters Degree at the University of Missouri. Mark is married to his wife Martha and have two adult daughters, Jennifer and Danica. Delegate Zatezalo has worked as a Hydrogeologist and is known in the legislature for his knowledge of issues impacting the oil and natural gas industries. Mark is an active member of the Serbian Orthodox Church and is affiliated with the following organizations: AHEPA; Weirton Chamber of Commerce Other Public Service Chairman, and the City of Weirton Redevelopment Authority. Delegate Zatezalo was originally elected to the West Virginia House of Delegates in 2014.