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
Oscar Hammerstein II Jerome Kern had written "Ol' Man River." "Indeed not," she retorted. "Jerome Kern wrote 'dum, dum, dum-dum.' My husband wrote 'Ol' Man River'." Other Kern-Hammerstein musicals include "Sweet Adeline", "Music in the Air", "Three Sisters", and "Very Warm for May". Hammerstein also collaborated with Vincent Youmans ("Wildflower"), Rudolf Friml ("Rose-Marie"), and Sigmund Romberg ("The Desert Song" and "The New Moon"). Hammerstein's most successful and sustained collaboration began when he teamed up with Richard Rodgers to write a musical adaptation of the play "Green Grow the Lilacs". Rodgers' first partner, Lorenz Hart, originally planned to collaborate with Rodgers on this piece,