Michele Detwiler . Operatic mezzo-sopranos

Artist Data: Alice Gentle was born 1885-06-30. Alice Died: 1958-02-28….

Artist Data: Wikipedia: https://en.wikipedia.org/wiki/Leonora_Sparkes

Artist Data: Raymonde Delaunois was born 1885-10-12. Raymonde Died: 1984-06-30….

Artist Data: Conchita Supervía was born 1895-12-09. Conchita Died: 1936-03-30….