. . . "1970Z"^^ . "American archivist" . "T. R. Schellenberg"@en . . . . "Theodore Roosevelt Schellenberg (24 February 1903 \u2013 14 January 1970) was an American archivist and archival theorist. Schellenberg's publications and ideas are part of the foundation for archival theory and practice in the United States."@en . "1903Z"^^ . . . "1903-02-24Z"^^ . . . "Schellenberg, Theodore Roosevelt"@en . . . . "1970-01-14Z"^^ .