The hero recurs in _Jock o’ the Side_, and Jock o’ the Mains is an
historical character, that is, finds mention in authentic records, as
Scott points out. The Armstrongs were deported in great numbers, as “an
ill colony,” to Ulster, by James I. Sir Herbert Maxwell’s _History of
Dumfries and Galloway_ may be consulted for these and similar reivers.