. . . "Senate President of Nigeria" . . . . . . . "David B. Alechemu Mark" . . . . . . . . . . "Senator Mark" . . . . . . . . . . "David Mark" . . . . . . . "Senator David Mark" . . . . . . . . . . "David Mark" . . . "David Mark" . . . . . . . . "David Anthony Mark" . . . . . . . .