Mary T. Clark

Sister Mary Twibill Clark, RSCJ (October 23, 1913 – September 1, 2014) was an American academic and civil rights advocate. She was best known as a scholar of the history of philosophy, and was associated especially with Augustine of Hippo.

Born in Philadelphia, Pennsylvania to Francis S. and Regina Holland (née Twibill) Clark, Clark entered the Society of the Sacred Heart on June 5, 1939 after graduating Manhattanville College. Much of her life was subsequently spent at the college where she taught philosophy. A Chair of Christian Philosophy at the College, from which she retired in 2011, bears her name.

She served as the President of the American Catholic Philosophical Association in 1977, of the Metaphysical Society of America, and of the Society for Medieval and Renaissance Philosophy. Clark served on the Executive Committee of the Eastern Division of the American Philosophical Association, and towards the end of her life as a visiting academic at Ralston College.

Clark was among the original Editorial Advisors of the scholarly journal Dionysius, to which she contributed a discussion of the relevance of Augustine's theology of the Trinity, and was in addition a member of the Board of Editorial Consultants of the Personalist Forum.

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