4/18/1965: African-African opera singer retire after her last performance at Carnegie Hall on this day. Marian was an American contralto and one of the most celebrated singers of the twentieth century. Music critic Alan Blyth said: “Her voice was a rich, vibrant contralto of intrinsic beauty. Most of her singing career was spent performing in concert and recital in major music venues and with famous orchestras throughout the United States and Europe between 1925 and 1965. Although offered roles with many important European opera companies, Anderson declined, as she had no training in acting. She preferred to perform in concert and recital only.