About Ivan Allen:
Ivan Allen was an American ballet dancer who was active as a principal dancer with the American Ballet Theatre during the 1950s and early 1960s. He became a principal soloist with the Metropolitan Opera in 1964, making his debut with the company in Jules Massenet's Manon on November 18, 1964. He appeared with the company 288 times over the next 14 years, making his last appearance on January 12, 1978 in Richard Strauss's Der Rosenkavalier.