Scope and Contents The collection consists of materials by or about Samuel D. Gross, MD or his family members from 1856-1934. Types of materials within the collection include addresses (1856-1882) to Jefferson Medical College and the American Surgical Association, correspondence (1861, 1876-1883, 1934 - with gaps), medical journal articles (1857-1884), lecture notes (some believed to be the work of Samuel W. Gross); and one scrapbook containing obituaries and sympathy letters