 Hugh Montgomery was among Bull’s audience. Montgomery had been a mathematics student at Canterbury during the 1940s, while Prior was single-handedly booting undergraduate logic into existence. Now resuming his studies after a career as a furniture manufacturer in Christchurch, Montgomery fell heavily for logic. He found himself ‘becoming more and more interested in tenses’, after reading Prior’s ‘Diodoran Modalities’. 1962 saw him joining the Canterbury philosophy department as an assistant lecturer (by then Shorter had succeeded Prior as professor and two lecturers had been appointed, Jim Thornton and Rudi Ziedens).