Dorothy Hammerstein spouses to marry in 1929. Oscar also had two children from his first marriage: William Hammerstein and Alice Mathias. His marriage to Dorothy lasted until his death in 1960. They had a son together, James Hammerstein. Between the 1930s and the 1950s she operated Dorothy Hammerstein Inc, a high-profile interior design business, with clients on both coasts of the United States. In 1949, along with her husband and the novelists Pearl S. Buck and James A. Michener, she was a founder of Welcome House, an organization that facilitates the adoption of children of American and Asian parents. From its inception
Willie Hammerstein Street and 7th Avenue, advertising "refined glamour" and featuring the biggest stars of vaudeville. Acts became harder to book, since performers did not want to be connected with a rival of the powerful Keith's circuit. Performers enjoyed playing the Victoria. Buster Keaton thought it was the greatest of the vaudeville houses. Hammerstein asked performers back many times if he liked them, as with the British comedian Harry Tate. In June 1905 Willie Hammerstein signed up Will Rogers to perform in the Victoria for afternoon matinees and in the Paradise Roof Garden in the evenings. The young Mae West played eleven