He became a lieutenant in the Royal Horse Guards.

He was a cornet in the Royal Horse Guards from 1726 to 1736.

Brocklehurst was commissioned into the Royal Horse Guards in 1874.

He became Colonel of the Royal Horse Guards in 1928.

He was commissioned into the Royal Horse Guards on 16 July 1919.

In 1927, he was commissioned into the Royal Horse Guards.

The next morning the last living performance geldings were executed on the beach by the Royal Horse Guards.

It was also there, in the market place, that six large barracks of the Royal Horse Guard were built.

He became colonel of the Royal Horse Guards in November 1907.

He was also a Captain in the Royal Horse Guards.