Ach, Annie, 1903, '04 _High soprano_ Ackerly, Mrs., 1901, '02, '03 _Mezzo-soprano_ Adler, Celia, 1890 _Soprano_ Adler, Dora, 1890 _Soprano_ Adler, Elsie, 1900 _Soprano_ Aiken, Mrs., 1896 _Soprano_ Aitken, Mabel, 1898 _Soprano_ Aitken, Mr., 1897 _High tenor_ Allison, George, 1906, '07, '08 _Baritone, bass_ Alwyn, Robert, 1897, '98 _Baritone, tenor_ Alwyn, Stella, 1898 _Soprano, low_ Ames, Lucille, 1910, '11 _Deep contralto_ Andrews, Mattie, 1892, '93 _Alto_ Andrews, Vina, 1892, '93 _Soprano_ Angus, Alice, 1899, 1900, '02, '03 _Soprano_ Angus, Mrs. Helen, 1899, 1900, '01 _Soprano_ Angus, Wm., 1899, 1900, '01 _Tenor, primo_ Arena, Angelina, 1901, '02, '10 _Mezzo-soprano_ Arena, Irvin, 1912 _Boy soprano_ Arbergast, Mr. A., 1900, '01 _Tenor_ Ashley, Chas. H., 1911, '12 _Lyric tenor_ Atchison, Mrs. L.F., 1906 _Soprano_ Atherton, Ethel, 1890, '91 _Soprano_ Atkins, Mr., 1896 _Baritone_ Atkins, Mrs., 1896 _Soprano_ Austin, Grace B., 1887 _Soprano_ Austin, Mrs. L.M., 1895 _Soprano_ Avan, Clara, 1898, '99, '00, '01, '02, '03 _Soprano_ Avan, Hattie, 1902, '03 _Contralto_ Avis, Ethel, 1908 _Contralto_ Bacon, Helen, 1898 _Soprano_ Baer, Mr., 1900 _Tenor_ Baker, Miss Sarah, 1898 _Soprano_ Ball, Louie, 1892 _Mezzo-soprano_ Ballentyne, Will, 1896 _Bass, baritone_ Banta, Clae, 1906, '07 _High Tenor_ Barnes, Pearl, 1909, '10 _Contralto_ Bartlett, Mrs., 1891 _Contralto_ Bauske, Hazel, 1910, '11, '12 _High soprano_ Baylis, Etta, 1905, '06 _Soprano_ Beam, Edith, 1879, '80, '82, '84, '85, '87 _Soprano, also accompanist_