{Clem Stoeckle; Julius F. Stone; P. W. Stoner; Clarence Strachauer; Samuel Wesley Stratton; George L. Streeter; Paul Stroobant; Georg Struve; Sunset Press; Sun Yatsen University Observatory; Swarthmore College Library; Eugene Swarzwald; Synchronome Co., Ltd}
{F. G. Hagemann; H. M. Hall; J. Halm; Hamburg Seewarte; Richard Hamer; W. J. Hanna; E. Hartwig; Georg Hartwig; Harvard College Observatory; Herbert Harvey; Margaret Harwood; W. Hassenstein}
{E. Valenta; George Van Biesbroeck; Marguerite Van Biesbroeck; H. C. Van Buskirk; Mabel Van Deusen; E. A. Varela; Ventura Abstract Co. [Charles Barnard]; A. Verschaffel; Vienna II Physical Institute [Georg Stetter]; Vitalait Laboratory, Inc. [Earle L. Ovington]; J. Voute. folded}
{Earnest Charles Watson; W. Marshall Watts; H. A. Weersma; Mrs. F. E. Weyerhauser; Mel Wharton; John Wheldon & Co.; Wheldon & Wesley, Ltd; Fred L. Whipple; James T. White & Co.; Gordon Whitnall; J. H. Whitney; Walter T. Whitney; "Who's Who" [A. N. Marquis; Europa Publications, Ltd.]; Gustave P. Wiksell; Marian Wilder}
{Corresp: F. J. M. Stratton; J. H. Oort; Jules Baillaud; P. J. van Rhijn; H. Shapley; Jan Schilt; W. Hassenstein; Cecilia Payne-Gaposchkin; S. A. Mitchell}
{Salto Observatory; Sanborn, Vail & Co.; San Diego Business and Professional Women's Club; San Diego County Planning Commission; San Diego Scientific Library; E. Sanger-Sheppherd; W. W. Sargeant; A. P. Saunders; Frederick A. Saunders; George G. Saunders}
