University of the Philippines, 1930-1932, Associate in Arts, 1932-1937, Doctor of Medicine. Johns Hopkins University, Baltimore, 1941-1942, Master of Public Health. Spoken languages: Filipino.
Assistant and Instructor, Institute of Hygiene, University of Philippines 1938-1941. United States Army 1942-1945. Senior Surgeon, United States Public Health Service 1945-1946.
Consultant and Chief of Malaria Division, United States Public Health Service Rehabilitation Programme in Philippines 1946-1950. Professor, of Malariology and Chairman Department, of Parasitology, Institute of Hygiene, University of Philippines 1950-1952. Deputy Chief, Malaria Section, World Health Organization (WHO), Geneva 1950-1951.
Regional Malaria Adviser, WHO, for W. Pacific Region 1951-1957. Director of Health Services, WHO Regional Office for W. Pacific 1958-1966, Regional Director of WHO for W. Pacific 1966-1979, Regional Director Emeritus since 1979. Professor, of Community Medicine, University of Philippines since 1969.
Lieutenant colonel United States Army, 1942-1945. Fellow Philippine Public Health Association, Philippine Association for Advancement of Science (founder). Member Philippine National Science Society, Delta Omega.
Son of Technology C. and Epifania Marquez )Justiniano) D. Married Fe Lakandola De la Fuente (deceased July 1986). Children: Fe Josefina, Francisco Junior, Francisco III, Fay Jeanelle.