Abigail, Adele, Alice, Anita, Beatrix (or Beatrice--regardless, you can nickname Trixie), Bebe, Bernadette, Bessie, Bette, Blanche, Brunhilde, Blythe, Cecilia, Clementine, Clara, Constance, Della, Dolores, Dora, Dorothy, Edna, Eloise, Esther, Evelyn, Eudora, Eunice, Fay, Flora, Florence, Frances, Gladys, Georgette, Georgina, Geraldine, Gloria, Harriet, Hattie, Hedwig, Helga, Janet,  Jean, Juniper, Lenora, Lillian, Loretta, Lorraine, Mae, Mabel, Madge, Maisie, Marjorie (or Marge), Mavis, Maxine, Muriel, Myra, Myrna, Nellie, Nora, Norma, Olive, Olivia, Patsy, Phoebe, Phyllis, Pola, Polly, Priscilla, Rosalind, Roxanne, Ruby, Ruth, Sally, Scarlett, Stella, Tillie, Trudy, Vera, Virginia, Vivian, Wanda, Wilhelmina
(I put these names in a Google doc and made my coworkers vote on their favorites 

 )