Avernos, The Australian 9th Division

Here’s what I was able to find on 9th Australian Division at the outset of the Siege of Tobruk (April 1941):

9th Australian Division (Major-General Sir Leslie James Morshead)

20th Infantry Brigade (Brigadier General J. J. Murray)
>>2/13th Infantry Battalion (New South Wales – x4 Companies of x3 Rifle Platoons, 65 trucks, 10 U carriers)
>>2/15th Infantry Battalion (Queensland – x4 Companies of x3 Rifle Platoons, 65 trucks, 10 U carriers)
>>2/17th Infantry Battalion (New South Wales – x4 Companies of x3 Rifle Platoons, 65 trucks, 10 U carriers)
>> 20th Antitank Gun Company (x3 Batteries, QF 2-pounders, 15 trucks)
>> x1 battery, 76mm mortars with trucks
>>58th Light Aid Detachment (maintenance, ordinance, 2-3 trucks, 12 engineers / technicians)

24th Infantry Brigade (Brigadier General A. H. L. Godfrey)
>>2/23rd Infantry Battalion (Queensland – x4 Companies of x3 Rifle Platoons, 65 trucks, 10 U carriers)
>>>>> *pretty sure 2/23rd replaced 2/25th, which was transferred to the 25th Brigade … not sure when.
>>2/28th Infantry Battalion (South Australia – x4 Companies of x3 Rifle Platoons, 65 trucks, 10 U carriers)
>>2/43rd Infantry Battalion (West Australia – x4 Companies of x3 Rifle Platoons, 65 trucks, 10 U carriers)
>> 24th Antitank Gun Company (x3 Batteries, QF 2-pounders, 15 trucks)
>> x1 battery, 76mm mortars with trucks
>>76th Light Aid Detachment (maintenance, ordinance, 2-3 trucks, 12 engineers / technicians)

26th Infantry Brigade (Brigadier General R. W. Tovell)
>>2/24th Infantry Battalion (Victoria – x4 Companies of x3 Rifle Platoons, 65 trucks, 10 U carriers)
>>2/48th Infantry Battalion (South Australia – x4 Companies of x3 Rifle Platoons, 65 trucks, 10 U carriers)
>>2/32nd Infantry Battalion (Victoria – would only arrive from Palestine LATER in the siege by sea)
>>>>>transferred in from 25th Infantry Brigade
>> 26th Antitank Gun Company (x3 Batteries, QF 2-pounders, 15 trucks)
>> x1 battery, 76mm mortars with trucks

2/7th Royal Australian Artillery Regiment
x4 batteries of 25 pounders, BUT NOTE: these are the refurbished pre-war 25-pounders, many of them originally bored / chambered as 18 pounders from World War I era.
>>20 “Matador” heavy trucks – these heavier trucks were used to tow artillery whenever possible, they are NOT the standard lighter trucks used in infantry battalions. Also note 9th Australian was critically short of these trucks in 1941, and many vehicles used in artillery regiments were “appropriated” civilian heavy vehicles from the immediate area.
>>63rd Light Aid Detachment (maintenance, ordinance, 2-3 trucks, 12 engineers / technicians)

2/8th Royal Australian Artillery Regiment
As above.
>>64th Light Aid Detachment (maintenance, ordinance, 2-3 trucks, 12 engineers / technicians)

2/12th Royal Australian Artillery Regiment
As above.
>>61st Light Aid Detachment (maintenance, ordinance, 2-3 trucks, 12 engineers / technicians)

2/3rd Australian Machine Gun Regiment (Victoria)
400-600 men, x12 machine gun platoons (Vickers) – Inadequately motorized, probably deployed piecemeal in support of line battalions in 20th, 24th, and 26th Brigades, and reliant on their transport.

2/3rd, 2/7th , 2/13th Royal Australian Engineers
15 standard trucks, 450 combat engineers. Again, inadequately motorized.

2nd Battalion /3rd Light AA Regiment
x6 batteries (usually 4 guns each) of 20mm (??) guns. This is weird. I can’t independently verify this right now. 20mm is a strange caliber for British / Commonwealth / Allied AA artillery at this time. I would be expecting 40mm Bofors or 3.7 inch QF guns.

9th Australian Divisional Cavalry Regiment (transferred from 8th Australian in MAY, 1941).
x30 universal carriers, HOWEVER, many / most were converted to carry the Boys antitank rifle, in an attempt to make them into “tank destroyers.”
x15 Vickers Mark VIb light tanks.
>>82nd Light Aid Detachment (maintenance, ordinance, 2-3 trucks, 12 engineers / technicians)

9th Australian Divisional Services, includes:
>>9th Division Australian Army Service Corps
>>>>9th AASC Supply, Ammo, and Petrol companies
>>2/3rd, 2/8th, 2/11th Battalions, Australian Army Medical Corps
>>2/4th Field Hygiene detachment (platoon strength), AAMC
>>9th Australian Signals Regiment
>>>>>67th Light Aid Detachment (maintenance, ordinance, 2-3 trucks, 12 engineers / technicians)

NOTE that some sources will list the 3rd Australian Antitank Regiment. This is true, but I have these listed broken in their component 20th, 24th, 26th AT Gun Companies, attached to the 20th, 24th, 26th AT Gun Companies (batteries, actually)
>>>3rd Australian AT Rgt included 71st Light Aid Detachment (maintenance, ordinance, 2-3 trucks, 12 engineers / technicians)