Contains material from Dr. Carl Victor Vischer, Sr. [1866-1906] and his sons, Dr. Carl Victor Vischer, Jr. [1896-1932] and Dr. Thomas John Vischer [1900-1978]. Dr. Carl Vischer, Sr graduated from Hahnemann Medical College in 1887 and was a noted surgeon who developed the appendectomy incision. He was also a founder of St. Luke's Hospital and the namesake of the Carl V. Vischer Medical and Surgical Society, founded in 1907 by a student of his, Dr. Desiderio Roman. Dr. Thomas Vischer was a prominent professor of Medicine and Physiology at Hahnemann Medical College. Dr. Carl V. Vischer Jr. was a Fellow of the American College of Physicians and a research physician who taught internal medicine at Hahnemann Medical College. Contains personal and professional material and photographs, given by Mrs. Thomas Vischer.