While they claimed to have performed in England for King George V , George - Graves was not able to find evidence to support this .
Researcher Nadine George - Graves wrote that the sisters were the highest paid act in the Vaudeville circuit .
While sisters claimed to have performed in England for King George V , Researcher     was not able to find evidence to support this .
Researcher Nadine George - Graves wrote that the sisters were the highest paid act in the Vaudeville circuit .