Tank brigade organisation 19th August 1918
21st August 1918 - Battle of Bapaume
1st Tank Brigade
3 Battalion – Whippet
7 Battalion – Mk IV
10 Battalion – Mk V
17 Armoured Car
2nd Tank Brigade
6 Battalion – Whippet -
12 Battalion – Mk IV
15 Battalion – Mk V*
3rd Tank Brigade
9 Battalion – Mk V
11 Battalion – Mk V
14 Battalion – Mk V
1st, 2nd and 3rd Tank Brigades with 3rd Army.
3rd Brigade to 1st Army by August 26th for Second Battle of Arras.
4th Tank Brigade
1 Battalion – Mk V*
4 Battalion – Mk V
5 Battalion – Mk V
5th Tank Brigade
2 Battalion – Mk V
8 Battalion – Mk V
13 Battalion – Mk V
4th and 5th tank brigades with 4th Army
Source:
Narrative attached to Summary of tank actions from 8th August to 20th October 1918. PRO WO 95/94