Mary Marshall Clark is director of the Columbia Center for Oral History, the world’s oldest university-based oral history public archive. Clark, along with the sociologist Peter Bearman, undertook a large, longitudinal oral history project, “The September 11, 2001 Oral History Narrative and Memory Project,” a collection of 600 interviews with culturally and ethnically diverse New Yorkers differently affected by the afterlife of the September 11th events. Clark, Bearman, Catherine Ellis and Stephen Drury Smith co-edited 19 of these stories in After the Fall: New Yorkers Remember September 2001 and the Years that Followed, published by The New Press in September 2011. Currently, Clark is directing a legal, historical project on the post-9/11 use Guantánamo Bay as a detention center, and on the ramifications of policies of torture and rendition on individuals and families. Clark is co-founder and director, with Bearman, of the nation’s first masters’ program in Oral History, the Oral History Master of Arts, launched at Columbia University in 2008. Clark is past president of the Oral History Association and a distinguished lecturer for the Organization of American Historians. Prior to her career at Columbia, Clark conducted oral histories for the New York Times.