Fire Fighting During Civil Disorders. New York: International Association of Fire Chiefs, 1968. 84 pages. (LCCN 74154094) O'Hagan, John T., and Edward H. Blum. Technology Aids Fire Service. New York: Rand Institute, 1972. 31 pages. (LCCN 73170898) O'Hagan, John T. High Rise/Fire and Life Safety. New York: Dun-Donnelley Pub. Corp., 1977. 274 pages. () 1925 births 1991 deaths Commissioners of the New York City Fire Department