Demonstrations. NPS Director George Hartzog at the National Capital Region Earth Day flag ceremony at the Washington Monument.
<ul><li>Keywords: demonstration; ceremony; u.s. park police; nps director; Social and Humanitarian Movements(NPS History Collection Themes); Special Events(NPS History Collection Themes); NPS Personnel(NPS History Collection Themes)</li></ul>
<bdi><a href="https://en.wikipedia.org/wiki/en:Cecil_W._Stoughton" class="extiw" title="w:en:Cecil W. Stoughton"><span title="American photographer">Cecil W. Stoughton</span></a>
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Taken on 22 April 1970
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