ROBINSON.
Lieutenant, 1702. Major, 12 June, 1717.
WILLIAM ROBINSON.
Quartermaster, 8 March, 1775, in Lieutenant-Colonel Douglas's troop. Died, 23 February, 1778.
GEORGE CAMPBELL ROSS.
Cornet by purchase, 19 June, 1857. Lieutenant by purchase, 30 July, 1858. Exchanged to 8th Dragoons, 22 April, 1859.
HUGH ROSS.
Cornet, 24 December, 1726. Died, and succeeded by George Preston, 16 July, 1739.
JAMES ROSS.