Thorndyke, Helen Louise is not used in this library's catalog.

For works of this author written under other names, search also under Wirt, Ann, 1905-2002;  Clark, Joan, 1905-2002;  West, Dorothy, 1905-2002.  For works written in collaboration with the Stratemeyer Syndicate and W. Bert Foster, search also under Emerson, Alice B.;  Keene, Carolyn;  Thorndyke, Helen Louise;  Judd, Frances K.  

Try a search for Wirt, Mildred A. (Mildred Augustine), 1905-2002