Lloyd Humberstone was born in the US, raised and educated from ages 11-25 in the UK (with degrees from the University of York and the University of Oxford), and has been bsed at Monash University, Melbourne, Australia, since moving there in 1975. Has had visiting positions at the ANU (Canberra), University of Auckland, Princeton University, and St Andrews, and works mainly in the are of logic and its philosophical applications.