When the Territorial Force was created in 1908 under the Haldane Reforms, it included the Wessex Division covering the south-western counties of England. Most of its components came from the former Volunteer Force, but a number of new units had to be created to complete the division. One of these was the 1st Wiltshire Battery of the Royal Field Artillery, recruited from the mainly rural county of Wiltshire that had not previously had any artillery volunteers. The battery was raised on 7 July 1908 based at the railway town of Swindon and together with the 6th Hampshire and 1st Dorsetshire Batteries constituted III (or 3rd) Wessex Brigade, RFA. The brigade headquarters (HQ) was also based at Swindon, taking over The Armoury at 62 Prospect Place previously used by two Volunteer companies of the Wiltshire Regiment.Litchfield, p. 244.Frederick, p. 682.Becke, Pt 2a, pp. 43–8.Swindon at Drill Hall Project.43rd Divisional Artillery at Long, Long Trail.
