Athanasius Treweek

Lieutenant Colonel Athanasius Pryor "Ath" Treweek (1911–1995) was an Australian academic, linguist, mathematician and code-breaker.

[1] He was the son of Walter Henry Treweek (a teacher who came from Cornwall to Australia in the 1880s) and Mary Matilda Dwyer a nurse.

After attending Saint Ignatius' College, Riverview, where he was dux in 1928, "Ath" Treweek (as he was generally known) won the 1932 Cooper Scholarship for first place in Latin and Greek examinations conducted by the University of Sydney.

Following the outbreak of World War II, in January 1940, with the encouragement of the Australian Army, he, together with some colleagues at the University of Sydney, began to study Japanese codes.

As a result, it was agreed that Room's group, with the agreement of the University of Sydney, would move in August 1941 to work under Nave at the Special Intelligence Bureau in Melbourne.

Decoded signals following the Battle of Midway confirmed that the Japanese had lost four aircraft carriers, so ending Japan's offensive capability.

"[13] Athanasius Treweek's wife, Hazel Elizabeth Logue (1919–2005) OAM, MBE, was an academic and teacher.