Tim entered the College in 1973. His sisters, Angie (OGC 1981) and Ursula (OGC 1983), also attended the school. An outstanding student, he was heavily involved in cross country, serving as its captain in 1979, and was also a member of the athletics team and received Coles House colours for both sports.

After graduating in medicine from the University of Melbourne, Tim became a distinguished general practitioner, sexual health physician and researcher, completing a PhD and publishing more than 60 papers in the fields of HIV and sexual health. In 2018, he was elected as the Greens MP for Brunswick and earned widespread respect for his integrity, principled leadership and service as Chair of Parliament's Integrity and Oversight Committee.

Tim passed away on 19 September 2026, aged 64. He is survived by his wife Angela and two children.