Sarah Vaughan had a large range and was an accomplished scat singer. She was famous for her recordings and performances of the Great American Songbook, and, along with Ella Fitzgerald, made up part of the 'Golden Age' of American song. She was notably versatile, able to not only sing jazz and blues but also venture into Musical theatre.
For (I assume) extra credit, the description given applies to Billie Holiday. A contemporary of Vaughan's, Holiday had a range of around 1 octave and a rough tone to her voice, but was famous for her emotional portrayal of blues and jazz songs in the 40s and 50s. She gained notoriety for the song 'Strange Fruit', a civil rights song depicting the lynching of a black man from a tree.
