Biography

Birth date: 03 January 1865
Birth place: United Kingdom: Wales, Glamorgan
Death date: 26 April 1915
Death place: Ottoman Empire: Turkey, Gallipoli
Final rank: Lieutenant Colonel
Conflict: First World War, 1914-1918
Unit: 4th Australian Infantry Battalion

Rolls and Awards

Roll of Honour

  • Rank: Lieutenant Colonel
  • Date of Death: 26 April 1915
  • Unit: 4th Australian Infantry Battalion

First World War Embarkation Roll

  • Rank: Lieutenant Colonel
  • Date of embarkation: 20 October 1914
  • Place of embarkation: Sydney

Honours and Awards (Recommendation)

  • Unit: 4th Australian Infantry Battalion
  • Conflict: First World War, 1914-1918

Honours and Awards (Recommendation)

  • Unit: 4th Australian Infantry Battalion
  • Conflict: First World War, 1914-1918

Honours and Awards (Recommendation)

  • Unit: 4th Australian Infantry Battalion
  • Conflict: First World War, 1914-1918

Honours and Awards : Mention in despatches

  • Unit: 4th Australian Infantry Battalion
  • Conflict: First World War, 1914-1918

Collection Items

Photograph

A02710

Officers of the Anzac Corps on board HMS Queen Elizabeth during the final reconnaissance before the landing at Anzac. The two officers to the right of the turrets are Brigadier General H R MacLaurin of the 1st Brigade and Lieutenant Colonel A J Onslow Thompson VD, Commanding Officer of the 4th...

A02710

H16116

The 4th Battalion, AIF, training at Kensington. The man on horseback is Colonel Onslow Thompson.

H16116

H16711

The staff of the 1st Australian Infantry Brigade during training at Kensington. From the left they are, Major Irving (Brigade Major), Colonel Onslow Thompson (4th Battalion), Colonel MacLaurin (GOC) and Captain MacNaughton (4th Battalion). (Donor G. Henderson)

H16711

P02317.001

Gallipoli, Turkey. c. 1915-05. Side view of the grave, in the 3rd and 4th Battalion trenches, of Lieutenant Colonel Astley John Onslow Thompson VD, Commanding Officer of the 4th Battalion. He led the Battalion's advance on 1915-04-26 (the day after the landing) across the 400 Plateau and was killed...

P02317.001

P11216.025.001

The original grave of Lieutenant Colonel (Lt Col) Astley John Onslow Thompson VD, 4th Battalion. A 49 year old grazier of Menangle, NSW, prior to his enlistment, with 22 years service in the NSW Mounted Rifles and 2nd Australian Light Horse, he was appointed commanding officer of the 4th Battalion....

P11216.025.001

P01078.001

HOUNSLOW, ENGLAND, 1897-05. GROUP PORTRAIT OF THE SIX OFFICERS OF THE JUBILEE CONTINGENT OF THE NEW SOUTH WALES MOUNTED RIFLES, WHICH ARRIVED IN ENGLAND 1897-04-22 TO PARTICIPATE IN THE CELEBRATION OF QUEEN VICTORIA'S DIAMOND JUBILEE. LEFT TO RIGHT: LIEUTENANT S.S. RYRIE, MAJOR J.W. MACARTHUR...

P01078.001

C01168

The grave of Lieutenant Colonel A J Onslow-Thompson, killed in action on the Gallipoli Peninsula.

C01168

Private Record

Timeline

Date of birth 1865-01-03
Date and unit at appointment (Officers) 1914-08-15 Appointed Major, 4 Battalion.
Other 1914-08-15 - 1915-04-26 Commanding Officer of 4 Battalion.
Date promoted 1914-09-17 Appointed Lieutenant Colonel.
Date of embarkation 1914-10-20
Date of death 1915-04-26