Abstract Leon De Valinger, Jr., served as Delaware State Archivist from 1941 to 1970. The Leon De Valinger papers contain his personal and professional records, primarily related to his work as State Archivist and as a historian of Delaware. His professional, administrative, and subject files offer a window into the varied concerns of the archives profession as it evolved during the 20th century. Additionally, his work to document, preserve, and promote Delaware history and culture forms a theme...