It was embodied in 1778, at which time it was ranked the 10th regiment of militia, and remained active for five years.
It was embodied again in 1793 for the French Revolutionary Wars, ranked as the 38th, then in 1794 it was retitled as the Royal Buckinghamshire Militia (King's Own).
[1] With the resumption of hostilities in 1803, it was embodied as the 49th, and posted to Harwich Barracks.
In 1881, under the Childers Reforms, the regiment was transferred into The Oxfordshire Light Infantry as the 3rd Battalion.
As part of the Haldane Reforms in 1908, the battalion was disbanded.