A Machine Gun Company was attached to each Infantry Brigade and their subsequent Division.
|Brigade attached to:||9th Brigade|
|Division attached to:||3rd Division|
|Formed from the:||Machine Gun Section of 1st Bn. Northumberland Fusiliers|
|Machine Gun Section of 4th Bn. Royal Fusiliers|
|Machine Gun Section of 12th Bn. West Yorkshire Regiment|
|Machine Gun Section of 1st Bn. Royal Scots Fusiliers|
The 9th Bde. M.G. Coy. was formed by the 08 February 1916 from the Machine Gun Sections of the listed infantry battalions.
On 06 March 1918, it was amalgamated with the 8th, 76th and 233rd Machine Gun Companies to form No. 3 Battalion, Machine Gun Corps.
As a unit of the 3rd Infantry Division, it will have taken part in the following battles and engagements.
|27 March to 04 April||Capture of St. Eloi Craters [V. Corps, Second Army].|
|30 April||Second Attack on Bellewaarde [V. Corps, Second Army]|
|BATTLES OF THE SOMME|
|14 to 25 July||Battle of Bazentin Ridge [XIII. Corps, Fourth Army]|
|14 to 19 August||Battle of Delville Wood [XIII. Corps, until midnight 16/17 August, then XIV. Corps, Fourth Army]|
|13 to 18 November||Battle of the Ancre [V. Corps, Fifth Army]|
|BATTLES OF ARRAS|
|09 to 14 April||First Battle of the Scarpe [VI. Corps, Third Army].|
|23 and 24 April||Second Battle of the Scarpe [VI. Corps, Third Army].|
|28 and 29 April||Battle of Arleaux [VI. Corps, Third Army]|
|03 and 04 May||Third Battle of the Scarpe [VI. Corps, Third Army]|
|13 and 14 May||Capture of Rouex [VI. Corps, Third Army].|
|BATTLES OF YPRES|
|22 to 25 September||Battle of the Menin Road Ridge [V. Corps, Fifth Army]|
|25 to 30 September||Battle of Polygon Wood [V. Corps, Fifth Army, until 10 a.m., 28 September, then under II. ANZAZ Corps, Second Army].|