Edgar Vincent was an American publicist and actor of German birth, He went on to specialize in being a publicist for opera singers, helping shape and forward the careers of major stars like which French-American operatic soprano and actress who had an active career from the late 1920s through the early 1970s?
Edgar Vincent:  He went on to specialize in being a publicist for opera singers, helping shape and forward the careers of major stars like Lily Pons, Anna Moffo, Eleanor Steber, Jussi Björling, George London, Leonard Warren, Mirella Freni, Shirley Verrett, Cecilia Bartoli, Dolora Zajick, Dorothy Kirsten, Eileen Farrell, Birgit Nilsson, Rise Stevens and Salvatore Licitra. Lily Pons: Lily Pons (April 12, 1898 – February 13, 1976) was a French-American operatic soprano and actress who had an active career from the late 1920s through the early 1970s.
i don't know