Between 06 and 08 April, 1918, the 2nd County of London Yeomanry was reorganised as 'F' Battalion, Machine Gun Corps. It was renamed No. 104 Battalion, M.G.C., in mid-August 1918.
In Spring, 1918, the 3rd County of London Yeomanry was amalgamated with the City of London (Rough Riders) and reorganised as 103rd Battalion, Machine Gun Corps.