Armstrong's career and other naval papers, including notification of postings and promotions, decorations, and appointment as Chairman of the Industrial Mobilisation Course in Sydney Unit ID: 28-29
Biographical entries in F.B. Eldridge's A history of the Royal Australian Naval College 1913-1945 (1949) and The Australian encyclopaedia (1996) Unit ID: 37
Bulletin, 29 September 1954, containing a brief article about and caricature of Armstrong Unit ID: 26
Casualty list for HMAS Australia, with annotations by Armstrong; together with papers relating to HMAS Australia Veterans' Association, of which Armstrong was Patron, and paying off signal for HMAS Australia, 31 August 1954 Unit ID: 15 Date: 31 August 1954
Copies of action and other reports while Commanding Officer, HMAS Australia, 1944-1945 Unit ID: 16 Date: 1944/1945