Six Harvard College seniors have been awarded 2020 Rhodes Scholarships and a senior and recent alum were named George J. Mitchell Scholars. The research interests of the eight range from imperialism and economics to criminal justice and theater direction. Harvard’s American Rhodes Scholars now number 375, and this year’s honorees will begin their studies at Oxford University in October. Mitchell winners will begin their graduate study at Queen’s University Belfast and The Lir Academy at Trinity College Dublin in September.