Tom grew up in Sydney and after finishing high school moved to the region to work on the family sheep and cattle property managed by two of his uncles. Tom then commenced a Bachelor of Animal Science at Charles Sturt University and in his final year undertook an honours research project investigating the effects of vitamin D on the calcium status of twin bearing ewes. After graduating, Tom returned to the family property and was assigned the job of working out why the lambs were not growing as fast as they should. Tom was unsuccessful in meeting these high expectations, but rather than give up he decided to commence a PhD thesis investigating the constraints on lamb growth in intensive finishing systems.