Frank L. Horsfall, Jr., circa late 1960s Horsfall joined the Rockefeller Institute in 1934 as a physician on the Hospital\u27s pneumonia service. In 1937 he became head of a laboratory at the Rockefeller Foundation\u27s International Health Division, located on the Institute\u27s campus. Horsfall returned to the Rockefeller in 1941 as a member (full professor) of the Institute. He served as acting head of the Hospital during World War II, while the Hospital\u27s director, Thomas Rivers, took many of the staff to Guam as a unit of the Navy. Many researchers trained in Horsfall\u27s laboratory went on to distinguished careers, including Lewis Thomas, Edward Curnen, Harold Ginsberg, D.A.J. Tyrrell, M.R. Hilleman, E.D. Kilbourne, F.M. Davenport...