Record number13/002607Date qualifierexactDate rangeBetween 11th February 1933 and 31st December 1935NotesHawkesbury Diploma of Agriculture (HDA) Hawkesbury Agricultural College (HAC)
AO-1 Hawkesbury Agricultural College (HAC), Trethewie, Harold Raymond (Hawkesbury Diploma of Agriculture (HDA)). Western Sydney University, accessed 25/05/2026, https://collections.westernsydney.edu.au/nodes/view/50483
