[7] In April 1916, the regiment began to split up, with the RHQ and A Squadron joining the 69th (2nd East Anglian) Division in Yorkshire.

Of the two squadrons remaining in the United Kingdom, one was absorbed into the 6th Reserve Cavalry Regiment at Tidworth in March 1917, the other was disbanded.

[8] On 7 February 1920, the regiment was reconstituted in the Territorial Army with HQ at the Old Militia Barracks in Clare St, Northampton.

Following the experience of the war, it was decided that only the fourteen most senior yeomanry regiments would be retained as horsed cavalry,[9] with the rest being transferred to other roles.

[10] As a result, on 1 March 1922, the regiment was one of eight[a] converted and reduced to 7th (Northamptonshire) Armoured Car Company, Tank Corps.

The Northamptonshire Yeomanry was selected to form part of this Brigade and ordered to expand to full Regimental status.

This expansion coincided with the decision to increase the Territorial Army by forming duplicates of existing TA units.

By 1939, it had become clear that a new European war was likely to break out, and the doubling of the Territorial Army was authorised, with each unit forming a duplicate.

It constructed and moved dummy tanks in order to deceive the enemy as to the disposition and strength of British armour.

[3] When the TA was reorganised into the Territorial & Army Volunteer Reserve (T&AVR) on 31 March 1967, this unit was reduced to a Cadre with the Regiment being again placed in Suspended Animation.

[26] Upon establishment in February 1902 the regiment was issued with the new khaki uniform then being introduced as service dress for the British Army as a whole.

The regimental distinctions for the Northamptonshire Yeomanry included pale blue ("cornflower") facings and piping, plus a cap and collar badge comprising a galloping white horse.

[27] By 1905 a more elaborate dark blue dragoon style uniform with plumed white-metal helmet had been adopted for officers as review order.