{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}
{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}
{John L. Ridgway; A. E. Riemer; T. K. Riggen; Philip S. Riggs; Augusto Righi; William E. Ritter; G. B. Rizzo; W. F. Roberts Co., Inc. [B. H. Roberts. folded]; H. P. Robertson}
{Oberlin College [F. E. Carr; Emma L. Frank]; Sir Frederick O'Connor; J. Ogden; R. M. Ogden; Yngve Öhlman; Eleanor Olney; John Ohlsson; William Tyler Olcott [& G. H. Lutz]; Charles P. Olivier; P. Th. Oosterhoff; Earle L. Ovington}
{Mabel Chilberg; Laura E. Christman; Edith Clarke; Frances Conder; Elizabeth Cooley; Marguerite Crowe; Park Davidson; Mary A. Davies; Helen Davis; Margaret Davis; Lois E. Denton; J. A. Duerksen; M. Margaret Elmer; Inez Ensign}
