Fonds documents Dr. Cecil O. Walsh's activities mainly as a medical student at McGill University but also during his service overseas as a medical officer with the CAMC during World War I. The fonds contains notebooks on Nutrition, Physiology, Histology, Clinical Microscopy, Bacteriology, Practical Zoology, Medical Jurisprudence, Clinical Medicine, Mental Diseases, Clinical Surgery and Hygiene; printed exams intructions and notes on duty at war.