Lincoln Kirstein was a polymathic writer, critic, curator and impresario: a key connector and an indefatigable catalyst whose sweeping contributions to American cultural life in the 1930s and 1940s shaped artists and institutions. Best known for cofounding the New York City Ballet, he is also a crucial figure in the Museum of Modern Art's early history. He championed photography and figurative art; established the Museum's short-lived Dance Archives...