Lieutenant Colonel Declan Magner was educated at University College Medical School Dublin, and the National University of Ireland, where he was a distinguished scholar. In 1942, he was awarded the Malby Prize in Biochemistry and won the Dissection Prize in 1944.
16 Feb 1953 Short Service Commission Lieutenant RAMC.
1953 Junior Specialist in Obstetrics and Gynaecology.
1953–1954 Served at the British Military Hospital Wuppertal (BAOR).
16 Feb 1954 Short Service Commission Captain RAMC.
1954 Senior Specialist in Obstetrics and Gynaecology.
1954–1955 Served at the British Military Hospital Iserlohn (BAOR).
1955–1958 Served in Cyprus (Middle East Land Force).
20 July 1956 Permanent Regular Army Commission Lieutenant RAMC.
20 July 1956 Major RAMC.
1958–1960 Advisor in Obstetrics and Gynaecology Louise Margaret Hospital Aldershot.
1961–1962 Served at the Military Hospital Gibraltar.
1 Apr 1962 Lieutenant Colonel RAMC.
Malta 1962 Commanding Officer and Specialist in Obstetrics and Gynaecology David Bruce Military Hospital Mtarfa.
1963 Consultant Obstetrician and Gynaecologist.
Malta 1963 Commanding Officer and Specialist in Obstetrics and Gynaecology Royal Naval Hospital Mtarfa.
Malta 1964 Commanding Officer and Specialist in Obstetrics and Gynaecology Royal Naval Hospital Mtarfa.
1965–1966 Served at the British Military Hospital Munster.
1966 Command Advisor in Obstetrics and Gynaecology British Military Hospital Rinteln.
1969 Retired from the army and from April 1969 took up residence in Boksburg, South Africa. Resident medical officer at the Boksburg-Benoni Hospital, and private medical practitioner and specialist in Gynaecology and obstetrics.
1977–1979 Moved to Saudi Arabia in Sept 1977 and after two years returned to South Africa and settled in Port Elisabeth area.
28 Mar 1983 Died at Graaff-Reinet, Eastern Cape Province, South Africa.
- Entry No: 2032. Drew R. 1968. Commissioned Officers in the Medical Services of the British Army 1690—1960. Vol II Roll of Officers in the Royal Army Medical Corps 1898–1960,, London: Wellcome Historical Medical Library.
- Turton E W, 1983 June 25, Obituary, South Africa Med J, 63: 1026.