Dr. Theobald Smith, a pioneering epidemiologist, bacteriologist, and pathologist graduated from Cornell University in 1881 and received a M.D. from Albany Medical College in 1883. Working under Daniel E. Salmon, he eventually discovered the bacteria which would eventually form the genus salmonella. He also worked on Texas fever, a cattle disease and discovered the protozoa responsible for it. He worked for the federal Bureau of Animal Industry and taught at George Washington University and Harvard University before joining the Rockefeller Institute for Medical Research.