"The glorious voice"
By 1939, African-American singer Marian Anderson had toured Europe impressing crowds and composers alike. But in this country, she was banned from many concert halls because of her race. When she was not permitted to sing in Constitution Hall, the Department of the Interior arranged a concert at the Lincoln Memorial. 75,000 people attended and millions, including the author of this letter, listened on the radio.
National Archives, Records of the Office of the Secretary of the Interior