Rosie Dolly (October 25, 1892 – February 1, 1970) and Jenny Dolly (October 25, 1892 – June 1, 1941), known professionally as The Dolly Sisters, were Hungarian-American identical twin dancers, singers and actresses, popular in vaudeville and theatre during the 1910s and 1920s. Both sisters also appeared in two silent films.
The sisters, Rózsika Deutsch (later known as Rose or Rosie) and Janka Deutsch (later known as Yancsi or Jenny), were born on October 24, 1892, in Balassagyarmat, Hungary. Their parents were Julius (born Gyula Deutsch, c. 1865) and Margaret Deutsch (born Margit Weisz, c. 1874). Julius and son Istvan (later known as Edward, born March 31, 1898) emigrated to the United States in October 1904; the twins and their mother arrived May 1905. As children, the sisters trained as dancers and began earning money in beer halls as early as 1907. Barred for being under age by the New York City stage, they toured the Orpheum Circuit until 1909 when they debuted on the Keith Vaudeville Circuit.
The following year, they appeared in the stage production of The Echo. In 1911, Florenz Ziegfeld, Jr. signed them to appear in his Ziegfeld Follies for two seasons. Their act was a hit with audiences who enjoyed their glamorous personas.
In 1913, they decided to try to forge separate careers. Rosie appeared in The Whirl of the World on stage while Jenny teamed up with dancer Harry Fox (whom she married in 1912) in Honeymoon Express.[4] Jenny and Fox also toured the vaudeville circuit as a dance duo.
Both sisters made their film debuts in 1915: Jenny starred in The Call of the Dance and Rose appeared opposite Lillian Gish in Lily and the Rose (later reissued as The Tiger Lady). The sisters re-teamed in 1916 to appear in Ziegfeld’s Midnight Frolic and returned to vaudeville where they commanded $2,000 a week. In 1918, they appeared in their only film together, the semi-autobiographical The Million Dollar Dollies. Reference: Wikipedia