2004 G. William Morgan Lecture
Graham Stevenson, The Role of Approximations and Empiricism in Predicting Parameters of Radiological Importance at Accelerator Facilities (http://hps.org/iarpe/archive/3qtr04/morgan.html)
2003 G. William Morgan Lecture
Ralph Thomas, Accelerator Radiological Protection: A Personal and Privileged Odyssey (http://hps.org/iarpe/thomas)