| Date of birth |
1902-10-03 |
Lanceston, TAS. |
| Date and unit at enlistment (ORs) |
1915-12-31 |
Enlisted in the RAN. |
| Other |
1916 |
Entered the Royal Australian Naval College at Jervis Bay. |
| Other |
1919 |
Graduated from the Royal Australian Naval College. |
| Date promoted |
1920 |
Appointed midshipman. |
| Date returned to Australia |
1924 |
Served on the HMAS Brisbane. |
| Date promoted |
1925 |
Appointed lieutenant. |
| Other units |
1925 |
Transferred to HMAS Melbourne. |
| Other |
1926 |
Returned to England where he trained as a torpedo officer and naval air observor. |
| Date promoted |
1932 |
Appointed lieutenant commander. |
| Other |
1935 |
Appointed squadron torpedo officer in HMAS Canberra. |
| Other |
1937 |
Attended the Royal Navy Staff College in England. |
| Date promoted |
1937-06 |
Appointed commander. |
| Other units |
1940-04 |
Given command of HMS Eglinton. |
| Date returned to Australia |
1941 |
Returned to become director of operations at Navy Office, Melbourne. |
| Date of honour or award |
1941-07-01 |
Awarded Distinguished Service Cross (DSC), for destorying German E boats after Dunkirk.
|
| Other units |
1942-11-23 |
Given command of HMAS Warramunga. |
| Date promoted |
1942-12-31 |
Appointed captain. |
| Other |
1943-06 |
Given command of Task Group 74.2 with tactical control of a destroyer formation that included United States Naval vessels. |
| Other |
1944-03-05 |
Given comand of HMAS Australia. |
| Other |
1944-10 |
Served in the Phillipines. |
| Date of death |
1944-10-21 |
Died as of wounds incurred in an attack by a Japanese dive bomber during the Battle of Leyte Gulf, Phillipines. Dechaineux was burried at sea. |
| Date of honour or award |
1947-05-15 |
Posthumously awarded the American Legion of Merit in the Degree of Officer. |
| Other |
1990 |
Collins Class submarine was named HMAS Dechaineux.
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