In February 1689 he was colonel of a company of volunteers .
Johnston was High Sheriff 1660 , changed his name to Magill , an MP , was given an Irish Baronetcy in 1680 .
In February 1689 Johnston was Johnston of a company of volunteers .
Johnston was High Sheriff 1660 , changed his name to Magill , an MP , was given an Irish Baronetcy in 1680 .