Nathalie Krassovska (Leslie) was born in Lennigrad in 1919. Her mother was a dancer with Diaghilev's Ballets Russes and her grandmother was a soloist with the Bolshoi Ballet. She studied with Olga Preobrajenska in Paris and Legat in London. She danced with Nijinska's Co. in Paris 1932, with Balanchine's Les Ballets 1933 and with Serge Lifar in South America 1934. She then danced with the Ballet Russe de Monte Carlo 1936-1950 and with the London Festival Ballet 1950-1955. She danced most of the classic ballerina roles. After her dancing career she settled in Dallas and worked as a ballet teacher.