Oscar Hammerstein II Mathias by his first wife, and James Hammerstein by his second wife, with whom he also had a stepdaughter, Susan Blanchard. Hammerstein was one of the most important "book writers" in Broadway history – he made the story, not the songs or the stars, central to the musical and brought musical theater to full maturity as an art form. According to Stephen Sondheim, "What few people understand is that Oscar's big contribution to the theater was as a theoretician, as a Peter Brook, as an innovator. People don't understand how experimental "Show Boat" and "Oklahoma!" felt at the time they
Rodgers and Hammerstein Kern and Hammerstein's best-loved songs, "All the Things You Are". By the early 1940s, Hart had sunk deeper into alcoholism and emotional turmoil, and he became unreliable, prompting Rodgers to approach Hammerstein to ask if he would consider working with him. Independently of each other, Rodgers and Hammerstein had been attracted to making a musical based on Lynn Riggs' stage play "Green Grow the Lilacs". When Jerome Kern declined Hammerstein's offer to work on such a project and Hart refused Rodgers' offer to do the same, Rodgers and Hammerstein began their first collaboration. The result, "Oklahoma!" (1943), marked a revolution