Born in Manly, Stewart attended public schools at Harbord and Manly before studying at Sydney Technical College, Wagga Agricultural College and Macquarie University, where he received a Bachelor of Arts and a Master of Science.
Stewart was born in Manly. Stewart attended public schools at Harbord and Manly before. Stewart was studying at Sydney Technical College. Stewart was studying at Wagga Agricultural College. Stewart was studying at Macquarie University. He received a Bachelor of Arts. He received a Master of Science.