A Machine Gun Company was attached to each Infantry Brigade and their subsequent Division, an additional Company was attached as a divisional reserve.
| Brigade attached to: | Divisional Reserve |
| Division attached to: | 9th Division |
The 197th M.G. Coy. joined disembarked from Le Havre on 16 December 1916. It jointed the Division at Montenescourt on 19 December 1916.
On 01 March 1918, it was amalgamated with the 26th, 27th and 28th Machine Gun Companies to form No. 9 Battalion, Machine Gun Corps.
As a unit of the 9th Infantry Division, it will have taken part in the following battles and engagements.
| 1917 | |
| 09 to 15 April and 30 April to 10 May | BATTLES OF ARRAS. |
| 09 to 14 April | First Battle of the Scarpe [XVII Corps, Third Army]. |
| 03 and 04 May | Third Battle of the Scarpe [XVII Corps, Third Army]. |
| 18 to 23 September and 11 to 25 October | BATTLES OF YPRES. |
| 20 to 23 September | Battle of the Menin Road Ridge [V Corps, Fifth Army]. |
| 12 October | First Battle of Passchendaele [XVIII Corps, Fifth Army]. |