グレース・アレレ=ウィリアムズ、数学教師(+ 2022年) [出典]“UNIBEN flies flag at half-mast to mourn Alele-Williams”. Vanguard News. (2022年3月26日). https://www.vanguardngr.com/2022/03/uniben-flies-flag-at-half-mast-to-mourn-alele-williams/ 2022年3月27日閲覧. "The University of Benin (UNIBEN) on Saturday ordered the flying of the institution’s flag at half-mast to mourn the death of the first female vice-chancellor in Nigeria, Prof. Grace Alele-Williams. Alele-Williams, who was appointed vice-chancellor of the University of Benin in 1985 died on Friday in Lagos at the age of 89 years. ... Prof. Alele-Williams, Nigeria’s first female professor of Mathematics Education was born on Dec. 16, 1932 in Delta to an Itsekiri mother and Owan father from Sobe, Edo."[出典]Ahon, Festus; Ojiego, Nnamdi; Aliu, Ozioruva (2022年3月27日). “ALELE – WILLIAMS: More tributes as Okowa, Obaseki mourn”. Vanguard News. https://www.vanguardngr.com/2022/03/alele-williams-more-tributes-as-okowa-obaseki-mourn/ 2022年3月27日閲覧. "the UNIBEN have ordered that the institution’s flag be mounted at half-mast to mourn the death of the late professor. Alele-Williams, who passed on Friday evening in Lagos at the age of 89 years, was born in Warri, Delta State."[出典]“Grace Alele-Williams - Biography” (英語). MacTutor History of Mathematics archive. 2021年4月27日閲覧。