Dr. Greenfield Sluder was an internationally noted specialist in nose and throat diseases, director of the department of laryngology and a professor of the Washington University medical school for 22 years. At the time of his death, he was president of the American Laryngological Society. Known all over the world, Dr. Sluder was the author of several books. By original research, he made many advances in medical science. Students from around the world came to St. Louis to take post-graduate studies under Dr. Sluder. He was the inventor of the Sluder tonsillotome, an instrument many used for the removal of tonsils. Dr. Sluder made advances in the treatment of headaches involving the sinuses.

Dr. Sluder was born in St. Louis, a son of Aaron Baldwin Sluder, a native of Nashville, TN. He was educated in the local public schools, the manual training school of Washington University and the St. Louis Medical College, now the Washington University Medical School, from which he received his M.D. degree in 1888. From 1891 to 1896, he was instructor in clinical medicine in the St. Louis Medical College and from 1896 to 1905 was lecturer on laryngology, and from then on clinical professor and director of the department of laryngology in the Washington University Medical School. He was a graduate student in Vienna under the best rhinologists and laryngologists in the world. In addition to numerous articles in medical journals, he was the author of these books: Nasal Neuralgia, Headaches and Eye Disorders, published in 1927; Tonsillectomy, 1923; and Concerning Some Headaches and Certain Disorders of Nasal Origin, 1918. "Dr. Sluder was most noted for the amount of original work he did," a St. Louis neurologist said. "He was an investigator and research worker. He left a substantial amount of information on matters he discovered and developed."

St. Louis Dispatch, Oct 10, 1928, pp. 1 & 2