Twenty seven sets of correspondence; Sandiford, Sarnoff, Sato, Savile, Schreiber, Schultz, Schwarzenbach, Seafarers' Education Service, Seiwert, Sercombe, Seward, Silverthorne, Shuman, Simpson, Slocombe-Saunders, Clem Smith, Freda J. Smith, Snook,de Sola, Spencer, Stead, Stern, Steven, Stillman, Stuart, Suarez and Sunderland.