The East Yorkshire Regiment was an Infantry Battalion that would have had an MG Section as part of its Battalion Headquarters. These weapons would have been brigaded when the Machine Gun Corps was formed in 1915. The guns, and crews, would have been formed into a Machine Gun Company.
During the Great War, the Battalions were distributed as follows:
The 8th Battalion was part of the 8th Brigade, attached to the 3rd Division. It's MG Section was transferred on 22 January 1916 to form the 8th Bde. MG Coy.
The battalion had transferred from the 62nd Brigade, 21st Division on 16 November 1915.
In 1922, the Machine Gun Corps was disbanded and the guns returned to the Infantry Battalion as a Machine Gun Platoon and then formed as a Machine Gun Company in the early 1930s.
This remained until the formation of Divisional Machine Gun Battalions in 1936 where guns were brigaded once again.
Upon the disbandment of Divisional Machine Gun Battalions in the post-WW2 restructure of the British Army, the Vickers Machine Gun assest reverted to individual Battalions as part of the Support Company as a Machine Gun Platoon.