After a series of postwar mergers and changes of role, the regiment's lineage is maintained by 142 (Queen's Own Oxfordshire Hussars) Vehicle Squadron, Royal Logistic Corps.

The Oxfordshire Yeomanry were assigned as 'divisional troops' to 2nd Division of II Corps based at Guildford, alongside Regular Army units of infantry, artillery and engineers stationed round Aldershot.

[16] Charles Richard Spencer-Churchill, 9th Duke of Marlborough, who had joined the regiment as a junior officer was also appointed to the Headquarters Staff in the temporary rank of captain.

[25] On 5 April Methuen learned of the presence of a small Boer Commando led by the French Comte de Villebois-Mareuil and ordered Chesham's IY and other mounted troops to saddle up at once.

[30][31] Methuen's Column now took part in the pursuit of de Wet's force south down the railway towards Kroonstad, beginning with a sharp action at Rhenoster River on 24 June.

The First Contingent of the IY completed their year's term of service in 1901 and the two Oxfordshire companies returned home, having earned the QOOH its first Battle honour: South Africa 1900–01.

[7][13] Sir Winston Churchill joined the QOOH as a captain in 1902[38] and remained an enthusiastic supporter for the rest of his life, having a significant influence on the fortunes of the regiment during both World Wars, and even giving it a special place of honour at his funeral.

[43][44][45] The Oxfordshire Yeomanry (QOOH) transferred, with the following organisation:[6][7][8][46] The regiment formed part of the TF's 2nd South Midland Mounted Brigade in Southern Command.

IV German Cavalry Corps was already moving towards Ypres, and some of its cyclists clashed with a QOOH patrol on 5 October; the regiment was thus the first TF unit to see action.

They toiled in working parties bringing up supplies, digging defensive positions, suffering the discomforts of appalling conditions, and frequently dismounting to fight fierce engagements on foot and in the trenches themselves.

[13][71][72] However, in the more mobile fighting initiated by the German spring offensive of March 1918, many of the cavalry who had previously been dismounted to hold or dig trenches were remounted to act as tactical reserves.

The brigade watched the crossings of the River Oise and then remained in the line near Évricourt to cover the retirement of 5th Cavalry Bde and Harman's Detachment on 27 March.

This attack was made the following morning, with three waves of dismounted cavalrymen advancing under cover of an artillery and machine gun barrage; it was successful, but afterwards the cavalry suffered serious casualties while holding off German counter-attacks.

[75] The Cavalry Corps had moved to reserve behind First Army when the second phase of the German Spring Offensive (the Battle of the Lys) was launched, and it was engaged at Hazebrouck on 14–15 April.

Although it was not until 13.00 that the cavalry and tanks moved off, by 14.20 they had driven and ridden as far as the Hermies–Demicourt line, overlooking the main Hindenburg defences on the Canal du Nord 2,000 yards (1,800 m) ahead.

4th Cavalry Bde was present when Third Army stormed the Hindenburg Line on 27 September (the Battle of the Canal du Nord), and during the subsequent pursuit to the River Selle the QOOH once again joined VI Corps' advance guard.

At 11.15 the QOOH was ordered forwards with a brigade of field artillery and a company each of cyclists and machine gunners to pass beyond the final objective, across the Écaillon stream and the ridge and railway beyond, to see if the towns of Beaudignies and Bermerain on the Selle were occupied.

However, two days later the regiment went forwards with the machine gun company and this time a Hussar squadron advanced beyond the railway, found the front clear of the enemy and established a post until the infantry could catch up.

Demobilisation began in early 1919, but even after the prewar Territorials had returned home and 2nd Cavalry Division had been broken up, 1/1st QOOH remained in service until it was finally disembodied on 31 March 1922.

[91][92] This time there was no sudden order to join the front line actions soon as war broke out, and the regiment was detailed to perform home defence duties.

[6][86][89][87][95] When TA duplicate regiments were authorised to adopt their parent unit's subtitles on 17 February 1942, the 63rd A/T Rgt was officially designated 'Worcestershire and Oxfordshire Yeomanry', which took no account of the separation of the Worcester and Oxford batteries in 1939.

For security the battalion formed a perimeter camp, enclosing all the transport and supporting arms, including a troop of one of 91st (A&SH) A/T Rgt's SP batteries (to which the QOOH men had been drafted).

During the night a battle group of Panzer Division Clausewitz, riding on self-propelled SP guns and armoured half-tracks, crashed into the village and a wild melee followed, lasting until after dawn.

[87][95][110][111] On 11 November 1941 the regiment boarded the P&O ocean liner SS Narkunda[112] at Gourock near Greenock, Scotland on the River Clyde as part of "Winston Special" convoy WS 12Z.

[115][116] On 14 January 1942 the unit was attached to 11 Indian Brigade[109] and moved some fifty miles north of Birdwood Camp to Jahore Baru[115] and began defence of Singapore.

[124] Subsequently, the men continued to be used as slave labour[125] with many more deaths – mainly in Thailand, Singapore, or on a hell ship,[126][127][128] but some died in Sumatra, Formosa, China (Hong Kong), Malaysia or Japan.

[6][7][8][83][130][131][135][136] In 1967 the TA was reduced into the Territorial and Army Volunteer Reserve (TAVR) as part of a major cutback in Britain's armed forces and the switch to a defence policy based on the nuclear deterrent.

[138][140][141] Following the Army 2020 restructuring, the Queen's Own Oxfordshire Hussars became part of the Royal Logistic Corps (RLC) on 5 April 2014, forming 142 (QOOH) Vehicle Squadron based at Banbury.

As the huge procession was forming up, a brigade major of the Guards stormed up to the officer commanding the QOOH detachment and told him his men were incorrectly arranged according to accepted protocol.

"[39]Prior to World War I the QOOH wore an elaborate hussar style full dress of dark blue with white (silver for officers) braiding.