Overview Collection of correspondence, reports, reminiscences, newsletters, and other memorabilia fo participants in the VISA Program in Tanganyika in 1961-1963.

Overview Robert Hoopes Maris (1890-1975) was a Quaker dentist who served with the American Friends Service Committee in France after World War I.. The collection contains chiefly correspondence with his family written while Maris was serving as a dentist with American Friends Service Committee in France after World War I. Also a photograph album and other papers.

Overview David S. Richie (1908-2005) spent his life devoted to public service, particularly in the areas of work camps and cooperatives. A birthright Quaker, he served as Secretary of the Philadelphia Yearly Meeting Social Order Committee from 1939–1973 and was president of the Board of Friends Housing, Inc. He also was involved with the American Friends Service Committee and other organizations. These papers are divided into correspondence, writings, and topical files as assembled by Richie.