Editorial coverage across all 36 states via geopolitical zone seed packs (SW/SE/SS/NW/NE/NC), plus earlier single-state packs. Deep samples mix military administrators and civilian governors — not a complete historical roster. Dual-lens regional military governors (1966–67) are included where standard chronologies list them (e.g. Ojukwu, Eastern Region); they are not claimed as Fourth Republic state governors alone. Office-holders are not linked as a dynasty.
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