Violet Oldak was the daughter of Felix and Maria Clara Hedwig Wagner (nee Bartsch) who were German immigrants to Britain in the 1890s. They changed their name to Warner at one point. Felix died in 1913. Violet Oldak married Felix Oldak. She also had a brother named Arthur.
Fritzi Massary (born March 31, 1882, in Vienna, Austria, died January 30, 1969, in Los Angeles, California) was an Austrian-American actress and soprano singer. Born as Friederike Massaryk, she was a leading operetta singer in Berlin and Vienna. By 1912 she was established as the premier diva of her generation, and was known simply as "die Massary (the Massary)". She was closely associated with Oscar Straus, creating roles in six of his operettas, notably Der letzte Walzer in 1920. Despite her 1903 conversion to Protestantism, Massary fled Germany in late 1932 because of her Jewish heritage. She traveled through Austria and Switzerland to London, where she was befriended by Sir Noël Coward and starred in his Operette in 1938. In February 1939 she moved to Beverly Hills, California, where she lived until her death in 1969. Massary was married twice, first to an eye doctor Bernhard Pollack, and then in 1917 to the Austrian actor Max Pallenberg (1877-1934), who died in a plane crash in Karlsbad. Massary had a relationship withy Karl-Kuno Rollo Graf von Coudenhove (1887-1940), with whom she had her only child, Elisabeth Maria Karl (called Liesl) (1903-1979). Liesl later married the author Bruno Frank. Though Coudenhove was Liesl's father, Massary was never married to him. In fact, Coudenhove's family was nobility and threatened him with a mental institution to dissuade him from marrying an actress. (Source: Wikipedia)
Violet Oldak played the character Trudi in the original cast of Operette by Noel Coward and Fritzi Massary played Liesl Haren. They became friends during this time and stayed in touch afterwards.