Tidswell – former Director New South Wales Government Bureau of Microbiology and Director of Pathology at the Royal Alexandra Hospital for Children Alan O. Trounson – President of the California Institute for Regenerative Medicine John Turtle – former Kellion Professor of Endocrinology University of Sydney Nan Waddy – psychiatrist Harry Windsor – heart surgeon Donald Wood-Smith – Professor of Clinical Surgery Columbia University New York Jeannette Young – medical doctor and Chief Health Officer of Queensland Physics Bruce Bolt – pioneer of engineering seismology; Professor of Earth and Planetary Science at the University of California, Berkeley Brian O'Brien – physicist and space scientist Richard Dowden – noted geo- and astrophysicist Herbert Huppert – Professor of Theoretical Geophysics and Foundation Director, Institute of Theoretical Geophysics, Cambridge University since 1989; Fellow of King's College, Cambridge since 1970 Richard Makinson – physicist notable for his contributions to amorphous semiconductors Bernard Mills – inventor of the Mills Cross Telescope Edwin Ernest Salpeter – known for his contributions to astronomy; Professor of Physics, Emeritus at Cornell University Veterinary and agricultural scientists William Ian Beardmore Beveridge – Professor of Animal Pathology and Director of the Institute of Animal Pathology at Cambridge University from 1947 to 1975 Chris Brown – veterinarian and TV presenter, most notably in the factual TV series Bondi Vet Sir Ian Clunies Ross – Chairman Commonwealth Scientific and Industrial Research Organisation Hugh McLeod Gordon – veterinary parasitologist Daria Nina Love – veterinary microbiologist and educator Gordon McClymont – agricultural scientist, ecologist, and educationist; foundation chair of the Department of Rural Science at the University of New England; originator of the term "sustainable agriculture" Ross Perry – Australia’s first registered avian veterinarian; first to study and name Psittacine Beak and Feather Disease, for which he was co-discoverer of viral infection agent Sanjaya Rajaram – World Food Prize Laureate and the Head of Wheat Programme from 1976 to 2001 at International Maize and Wheat Improvement Centre (CIMMYT), once referred to as "the greatest present-day wheat scientist in the world" by Norman Borlaug Sport 'Snowy' Baker – rugby union, diving, boxing, swimming and polo Nigel Barker – holder of Australia's first athletics world record, in the Ken Catchpole – rugby union footballer, state and national representative half-back Alex Chambers – professional mixed martial artist in the UFC Brendon Cook – international race car driver Chloe Dalton – formed part of the first female rugby 7s team