<page_title> List of national memorials of the United States </page_title> <section_title> National Park Service national memorials </section_title> <table> <cell> Roger Williams <col_header> Name </col_header> <col_header> Arkansas Post </col_header> <col_header> Arlington House, The Robert E. Lee Memorial </col_header> <col_header> Chamizal </col_header> <col_header> Coronado </col_header> <col_header> De Soto </col_header> <col_header> Federal Hall </col_header> <col_header> Flight 93 </col_header> <col_header> Fort Caroline </col_header> <col_header> Franklin Delano Roosevelt Memorial </col_header> <col_header> General Grant </col_header> <col_header> Hamilton Grange </col_header> <col_header> Johnstown Flood </col_header> <col_header> Korean War Veterans Memorial </col_header> <col_header> Lincoln Boyhood </col_header> <col_header> Lincoln Memorial </col_header> <col_header> Lyndon Baines Johnson Memorial Grove on the Potomac </col_header> <col_header> Martin Luther King, Jr. Memorial </col_header> <col_header> Mount Rushmore </col_header> <col_header> Pearl Harbor </col_header> <col_header> Perry's Victory and International Peace Memorial </col_header> <col_header> Port Chicago Naval Magazine </col_header> </cell> <cell> October 22, 1965 <col_header> Date established </col_header> <row_header> Roger Williams </row_header> </cell> </table>
The Roger Williams national memorial was authorized on October 22, 1965.