5th West Riding Battery 2nd West Riding Brigade RFA
5th West Riding Battery, Royal Field Artillery Head Quarters Skircoat Road (Kelly, 1912)
Headquarters, A, B, C, F 4 Duke of Wellington’s West Riding Regiment [see below]
B Section 1st Yorkshire Mounted Brigade Field Ambulance RAMC
ds 'D' Squadron Yorkshire Dragoons
Cavalry were trained at the Riding School, which stood opposite the present Halifax Bank headquarters in Halifax.
These premises were used by the 5th West Riding Battery 2nd West Riding Brigade Royal Field Artillery.
The Times, Thursday May 4th, 1899:
‘A vote of thanks was accorded to Lord Roberts on the motion of the Mayor of Bradford, seconded by the hon. colonel of the regiment, Colonel H. A. Foster, who before sitting down handed over the title-deeds of the Halifax Drill-hall, which was built at an estimated cost of over £4,000 and of which he was the owner, to Colonel Hoffman, as representing the regiment, for the use of that section of the regiment stationed in Halifax.’
There is reference elsewhere to ‘Drill Hall, Arden Road Halifax. Opened on 12th December 1913.’
This may suggest a possible remodelling. (Reference from Malcolm Bull's Calderdale Companion
and used with permission.)
The drill hall is now used as the Arden Road Social Club. 
Built to the design of R. Coad*, this Drill Hall was the Headquarters of A, B, C and F companies 4th Duke of Wellington’s West Riding Regiment and was in use till 1998. It was built in 1868-70 for the 4th West Yorkshire (Halifax) Rifle Volunteers, which became the First Volunteer Battalion (Duke of Wellington's) West Riding Regiment in 1883, and later the 4th Battalion (Duke of Wellington's) West Riding Regiment, in 1908.
The building has been carefully restored and converted into apartments. The developer’s publicity says: ‘Constructed in the late 19th Century, The Drill Hall was an active base for the 4th West Yorkshire Rifle Volunteer Corps until 1999'
. Moving with the times, [the]developers... have sympathetically restored this landmark building into 27 stunning apartments.’
(* Malcolm Bull, op cit)
B Section 1st Yorkshire Mounted Brigade Field Ambulance, Royal Army Medical Corps
Headquarters, 2, Carlton Terrace