David Alechenu Bonaventure Mark, GCON (born April 1948) is a retired Nigerian Army Brigadier General and politician. He was President of the Senate of Nigeria from 2007 to 2015 and is the Senator for the Benue State constituency. He is a member of the People's Democratic Party (PDP). Prior to his senatorial career, Mark was the military governor of Niger State from 1984 to 1986 and the Minister of Communication.Mark was born in Zungeru Niger State in April 1948. He attended St. Francis Catholic Practicing School before attending the Nigerian Military School. After that he attended the Nigerian Defence Academy. He was commissioned as a 2nd Lieutenant in 1970 and became a Captain in 1971.Template:Citation neede He was Commandant of Static Communications in 1974, then later held a political post as Chairman Abandoned Properties Implementation Committee in the Eastern region in 1976. Wikipedia