Another influential figure in Okigbo's early years was his older brother Pius Okigbo, who would later become the renowned economist and first Nigerian Ambassador to the European Economic Commission (EU).
En inflytelserik figur i Okigbo ungdomsår var hans äldre bror Pius Okigbo, som senare skulle bli en välkänd ekonom och första nigerianska ambassadören till Europeiska unionen (EU).