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 I machine's worth to around $200,000. Another invention that Hammerstein created was a more efficient plumbing system for his sink when it had leaked one night. He also moonlighted as a theater manager in the downtown German theaters. He became wealthy industrializing cigar manufacturing, and his tobacco fortune provided the money he used to pursue his theater interests. Hammerstein built his first theater, the Harlem Opera House, on 125th Street in 1889, along with 50 housing developments. His second theater, the Columbus Theatre, was built in 1890 on the same street, featuring light theatrical productions. His third theater was the first