Numbers in round (brackets) indicate letters addressed to Vivien Leigh. Numbers in square [brackets] indicate reply letters addressed to the sender.
Ogdon, Graeame (1); Olaf, Pierre (2); Olivier, Isabel (Ibo) (4); Olivier, Edith (2); Olivier, Louise (2); Olivier, Sybille 'Syba' (3); Olivier, Tarquin (17); Olley, Elspeth (1) [1]; Olson, Liselotte (3) [2]; O'Neill, Carlotta Montereu (1); Ong, Linda (1) [1]; Ono, Akira (1); Oppenheimer, Mr (1); Orr, PC (3) [2]; Orry-Kelly (1); Osborne, John (1); Outilev, Vladimir (3) [2].