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Oscar Cedric ISAACHSEN, Lt Colonel

Oscar Cedric ISAACHSEN, Lt Colonel

Male 1911 - 2009  (97 years)

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  • Name Oscar Cedric ISAACHSEN 
    Suffix Lt Colonel 
    Nickname Zac 
    Born 5 Jun 1911  Mannum SA Find all individuals with events at this location  [1
    Gender Male 
    Military Service 1939-1945  WWII Find all individuals with events at this location 
    Commander of 2/27 Infantry Battalion in the Middle East. Promoted 1942 to Lieutenant-Colonel in command of the 36th Battalion in New Guinea. He was awarded the DSO (Distinguished Service Medal) and ED (please advise) long service medal.  
    Military Service 1939-1945  WWII Find all individuals with events at this location  [2
    Enlisted 7 May 1940:Australian Army at Malvern/Adelaide SA, NOK:mother,Dorothy Isaachsen, Discharged as Lieutenant Colonel of 2/27 Australian Infantry Battalion with Companion of the Distinguished Service Order during position as Lieutenant Colonel of 2/27 Australian Infantry Battalion. Discharged 21/11/1945. NOK Isaachsen, Dorothy. See citation for source. 
    Military Service 1939-1945  WWII Find all individuals with events at this location 
    Service number:SX2915 Ranks Held Private-1.7.29,
    Corporal-3.2.29, Sergeant-16.1.1930, Lieutenant-2.9.1933, Captain-13.4.1939, Major-14.1.1941, Acting Lieutenant-11.8.1943, Lieutenant Colonel 1.9.42, Major-14.1.41:

    Discharge Rank-Lieutenant Colonel Service: Australian Army, Units:Australian Army, 2/27th Australian Infantry Battalion, 36th Australian Infantry Battalion, 36 Battalion (St George's English Rifle Regiment), Conflict/Operation:

    SOURCES Page12 of pay levels of military record for rank changes, Page6 Govt Gazettes: Published in London Gazette in 1946-02-14,Published in London Gazette in 1941-12-30, Published in Commonwealth Gazette in 1946-02-21 
    Military Service 1939-1945  WWII Find all individuals with events at this location 
    Service TIMELINE:
    DATE commissioned:20 September 1933
    Interwar Service 2:20 September 1933-lieutenant 27th battalion
    Interwar Service 3: 14 April 1939-captain

    Career summary 2: 01 May 1940-seconded 2/27th battalion
    Career summary 3:07 May 1940: enlisted 2AIF
    Career summary 4: 1940-06-17 - 1940-07-05 course Staff & Command School Sydney (Company Co
    Career summary 5:24 November 1940 arrived Middle East
    Career summary 6: 14 January 1941-major
    Career summary 7: 04 October 1941-gun shot wound L:leg, 18 Jun 41-returned to unit
    Career summary 9: 25 November 1941-course Middle East Combined Training Centre 15
    Career summary 10: 25 March 1942-Returned to Australia (4MD)
    Career summary 11: 11 August 1942-temporary lieutenant colonel, commanding officer 51st battalion
    Appointment 1942-08-11 - 1942-09-02 Battalion: 51st; Rank on appointment: major, temporary lieutenant colonel ; Appointed from: 2/27th battalion ; Reason for end of appointment: new command -infantry battalion (battalion disbanded ??)
    Career summary 12:14 August 1942-arrived New Guinea
    Career summary 13:01 September 1942-lieutenant colonel
    Career summary 14:02 September 1942-commanding officer 36th battalion
    Appointment:1942-09-02 - 1945-08-28 Battalion: 36th; Rank on appointment: commanding officer 36th battalion ; Appointed from: commanding officer 51st battalion ; Reason for end of appointment: new command -infantry battalion (battalion disbanded ?)
    Career summary 17:1943-02-27 - 1943-03-18- evacuated Malaria benign tertian (a type of mala
    Career summary 15:19 March 1943 Returned to Australia (Mareeba)
    Career summary 18:29 May 1943-evacuated Malaria benign tertian (a type of malaria) 6
    Career summary 16:07 July 1943-arrived New Guinea
    Career summary 19:26 April 1944-attached Headquarters 6th Brigade 14
    Career summary 20:20 July 1944-Returned to Australia (Townsville )
    Career summary 21:1944-07-21 - 1944-09-23 course Staff Cse (amphibious)
    Career summary 22:24 September 1944-arrived Moresby
    Career summary 23:08 October 1944-Arrived New Britain
    Career summary 24:26 June 1945-Returned to Australia (Bris)
    Career summary 25:28 August 1945-commanding officer 2/1st battalion
    Appointment:1945-08-28 - 1945-10-24
    Battalion: 2/1st; Rank on appointment: Lieutenant colonel; Appointed from: lieutenant colonel; Reason for end of appointment:demobilised
    Career summary 26:24 October 1945-relinquished command 2/1st battalion
    Career summary 27:22 November 1945-Reserve of Officers
    Career summary 28:21 February 1946-Companion of the Distinguished Service Order (South-west Pacific Area 1 Oct 44-31 Mar 45)
    Career summary 1:captain 27th battalion-
    Career summary 8:30 Dec 41 MID
    Interwar Service 1:presumably OR service 
    Occupation Adelaide SA Find all individuals with events at this location 
    Barrister & solicitor 
    Died 28 Apr 2009  Adelaide SA Find all individuals with events at this location  [3, 4
    Buried Y  [5
    Person ID I-6343  Christina and Donald McLean
    Last Modified 27 Apr 2019 

    Father Oscar Lionel ISAACHSEN, Sir,   b. 8 Sep 1885, Adelaide SA Find all individuals with events at this location,   d. 1 May 1951, Sydney NSW Find all individuals with events at this location  (Age 65 years) 
    Relationship -2070 
    Mother Ella Gertrude SCHUETZE,   b. 1884,   d. 8 Jun 1976  (Age 92 years) 
    Relationship -2070 
    Married 8 Dec 1910  Nairne SA Find all individuals with events at this location  [6
    Family ID F-2070  Group Sheet  |  Family Chart

    Family Dorothy Lynette ROGERS,   b. 20 Jul 1913,   d. 22 Sep 1974  (Age 61 years) 
    Married 14 Oct 1939  Hawthorn SA Find all individuals with events at this location 
    Children 
    +1. ML I
    +2. OA I
    +3. JM I
    Last Modified 1 Jan 2017 00:50:57 
    Family ID F-2069  Group Sheet  |  Family Chart

  • Photos

    Isaachsen, Oscar Cedric, Major 1939-1945

  • Sources 
    1. [S-75] http://www.genealogysa.org.au, 19.1.2017 Researcher Lorna McLean.
      birth;1911, ISAACHSEN,Oscar Cedric, father;Oscar Lionel ISAACHSEN, mother;Ella Gertrude SCHUETZE born at Talunga SA Reg No;866/413. No other known/offered/found evidence to date.

    2. [S-77] http//:www.ww2rolls.gov.au, http//:www.ww2roll.gov.au, 21 Jan 2017 Researcher Lorna McLean.
      Enlisted 7 May 1940 at Locality Malvern SA place of enlistment Adelaide SA. DOB 5 Jun 1911 at Mannum SA
      Nominal WWII Army service records indicate overseas action by his service number:no detail provided
      Factual records from WWII nominal roll.

    3. [S-75] http://www.genealogysa.org.au, 19.1.2017 Researcher Lorna McLean.
      Newprint The Advertiser (Adelaide SA) ISAACHSEN Oscar Cedric DEATH DATE 2009 No other known/offered/found evidence to date.

    4. [S-99] http://ryersonindex.org/search.php, http://ryersonindex.org/search.php, 5 Feb 2018 Researcher Lorna McLean.
      ISAACHSEN,Oscar Cedric Death notice, 28APR2009 at 97yoa at Royal Adelaide Hospital SA SOURCE Advertiser Publication Date:16MAY2009

    5. [S-126] CEMETERY Metropolitan Cemetery Board WA-incl Pinnaroo, Karrakatta, Fremantle , http://www2.mcb.wa.gov.au/NameSearch/details.php?id=KB00071459, 23 Oct 2017 Researcher Lorna McLean.
      Summary Of Record Information Name:JEMIMA MARION MORRIS Application Number:KB00071459
      at Karrakatta Burial Aged (Years)70Date of Death14/03/1943 at BELMONT WA Grave Location KARRAKATTA CEMETERY: PRESBYTERIAN Section:IA Gravesite0366 Grant Number, K0037309, Grantee,PERCY ANGUS MORRIS Grant Status EXPIRED 20/04/1993

    6. [S-75] http://www.genealogysa.org.au, https://www.genealogysa.org.au login required, 19.1.2017 Researcher Lorna McLean.
      marriage;8 Dec 1910 Reg No;245/696 ISAACHSEN,Oscar Lionel BRIDE; SCHUETZE,Ella Gertrude in Nairne SA. No other known/offered/found evidence to date.
      Nairne is a small township in SA, founded by Matthew Smillie in 1839 and named for his wife's family.