President Franklin Delano Roosevelt died on April 12 , 1945 , shortly before he was to have opened the United Nations Conference on International Organization for which delegates from 50 countries met in San Francisco to draft and sign the United Nations Charter . On May 19 , the delegates held a commemorative ceremony in tribute to his memory in Muir Woods ' Cathedral Grove , where a dedication plaque was placed in his honor
United Nations Conference on International Organization
United Nations Conference on International Organization
Muir Woods National Monument