Nnamdi Azikiwe | Johnson Aguiyi-Ironsi | Yakubu Gowon | Murtala Mohammed | Olusegun Obasanjo | Shehu Shagari | Muhammadu Buhari | Ibrahim Babangida | Ernest Shonekan | Sani Abacha | Abdulsalami Abubakar | Olusegun Obasanjo | Umaru Yar'Adua | Goodluck Jonathan | Muhammadu Buhari | Bola Tinubu