In this interview, Floyd Dunn discusses topics such as: the Acoustical Society of America (ASA); biomedical ultrasound; graduate school and working at the University of Illinois, Urbana-Champaign; working at the University of Arizona Department of Radiology; advised by Bill Fry; physical acoustics; Henning von Gierke; American Institute of Ultrasound in Medicine (AIUM); his family background; serving in the Army in World War II; acoustic radiation; Bill O'Brien; Leon Frizzell; becoming a member of the National Academy of Sciences (NAS) and a member of the National Academy of Engineering.