D'Arcy Boulton (heraldist)  D'Arcy Jonathan Dacre Boulton, (born 1946) is a Canadian historian, armorist and heraldic author. Having obtained a Bachelor of Arts degree from the University of Trinity College and a Master of Arts degree from the University of Pennsylvania, Boulton completed a D.Phil. from the University of Oxford in 1976 and a Ph.D. from the University of Pennsylvania in 1978. He is a Professor of the Practice of Medieval Studies and Concurrent Associate Professor of History at the University of Notre Dame in Notre Dame, Indiana. Boulton is a member of the Académie Internationale d'Héraldique. In 1993, he was elected as a Fellow of the Royal Heraldry Society of Canada, and he has served as the dean of the society's College of Fellows.