A Machine Gun Company was attached to each Infantry Brigade and their subsequent Division.
| Brigade attached to: | Divisional Reserve |
| Division attached to: | 2nd Division |
The 242nd M.G. Coy. was formed on the 18 July 1917.
As a unit of the 2nd Division, it will have taken part in the following battles and engagements.
| 1917 | |
| BATTLE OF CAMBRAI | |
| 27 and 28 November | Capture of Bourlon Wood [IV. Corps, Third Army]. |
| 30 November to 03 December | German Counter Attacks [IV. Corps, handed over on 01 December to V. Corps, Third Army] |
On 4 March 1918, it was amalgamated with the 5th, 6th, and 99th Machine Gun Companies to form No. 2 Battalion, Machine Gun Corps.
