Correspondence with: American Legion; American Association for the Advancement of Oral Diagnosis; American Otorhinologic Society; American Speech Correction Association; American Society for the Control of Cancer; American Association of Nurse Anesthetists; American Journal of Surgery; American Journal of Orthodontics and Oral Surgery; American Medico-Legal Association; American Dental Ambulance; American Association of Railway Surgeons; American Society of Oral Surgeons and Exodontists; American Board of Psychiatry and Neurology; American Forestry Association; American Psychiatric Association; American Foundation for the Blind; American Association on Mental Deficiency; American Academy of Orthopaedic Surgeons; American Liberty League; American Library Association; American Academy of Ophthalmology and Otolaryngology; American Society of Orthodontists.
Ambassadors Club of St. Louis; Ambassador Hotel, New York City; Samuel Amberg; America, National Catholic Weekly Review; Burns Amberson; John Ambler; American Academy of General Practice; Walter Alvarez; American Academy of Pediatrics; American Association of Hospital Consultants; American Association of Industrial Physicians and Surgeons; American Association of Nurse Anesthetists; American Association of Railway Surgeons; American Broncho-Esophagological Association; American Chemical Society; American Christian Palestine Committee; American Clinical and Climatological Association; American College of Surgeons; American Congress on Internal Medicine; American Cystoscope Makers; American Express; American Heart Association; American Diabetes Association; American Hospital Supply Corporation; John Alsever; American Institute of Chemists; American Journal of Physiology; American Life Convention; American Historical-Genealogical Society; American Hospital Association; American Journal of Medical Sciences; American Nurses' Association; American Palestine Committee; American Journal of Surgery; American Journal of Syphilis; American Laryngological Association; American Medicine; American Museum of Immigration; American Pharmaceutical Association; American Peoples Encyclopedia; American Proctologic Society; American Radium Society; American Review of Tuberculosis; American Sanatorium Association; American Scandinavian Foundation; American Sterilizer Company; American Surgeon; American Temperance Society; American Therapeutic Society; American Trudeau Society; Americans for Democracy Action; American Medical Writers' Association; Amerikadeutscher Volksbund; Amigen; Harold L. Amoss; Newton W. Amos; Stella L. Ampleman; American Society for the Control of Cancer
