What was the Mañana Literary Society?

Robert Heinlein started the Mañana Literary Society as an informal Saturday-night get-together of Los Angeles science fiction writers and others before World War II. The membership included authors such as Anthony Boucher, Arthur K. Barnes, Edmond Hamilton, L. Ron Hubbard, Henry Kuttner, C.L. Moore, L. Sprague de Camp, Cleve Cartmill, Leigh Brackett, Jack Williamson and a very young Ray Bradbury. Robert and Leslyn hosted these meetings at their house on Lookout Mountain Avenue in Hollywood.