Edwin O. (Edwin Oakes) Jordan

Born in Thomaston, Maine, in 1866, Edwin Oakes Jordan studied at the Massachusetts Institute of Technology, where he was influenced by bacteriologist William T. Sedgwick. He began his scientific career in the late 1880s, at a time when bacteriology was rapidly changing how doctors and researchers understood infectious disease.

Jordan became closely associated with the University of Chicago, where he built its Department of Bacteriology and became a leading figure in American public health science. His work connected laboratory research with real-world problems such as contaminated water, food safety, and the spread of infection, and he also helped found the Journal of Infectious Diseases.

He is remembered for combining careful scientific method with a strong interest in everyday public health. That mix of precision and practicality made his books important to students, physicians, and general readers trying to understand the new science of germs in the early twentieth century.