Letty Mandeville Russell was a renowned theologian and Professor of Theology at Yale Divinity School (YDS) and an alumna of Harvard Divinity School and Union Theological Seminary, who worked in East Harlem Protestant Parish, was a director of Religious Education at Church of the Ascension, and a PCUSA home missionary. The collection includes syllabi, notes and course material relating to her tenure at YDS; manuscripts, notes and correspondence relating to her publications; reports, minutes and correspondence concerning work on denominational bodies, ecumenical task forces and committees, nonprofit organizations, and professional associations; correspondence; and memorabilia.