Robert Adam Holliday Lusk (March 8, 1781 – December 14, 1845) was a Reformed Presbyterian or Covenanter minister of the strictest sort, in a century which, according to Presbyterian historian Robert E. Thompson, was marked by increasing relaxation into less stringent manifestations of doctrine and practice amongst all branches of Presbyterianism. His career crossed paths with many prominent ministers and he was involved in numerous ecclesiastical courts at pivotal moments in the history of the Reformed Presbyterian Church. Amongst Reformed Presbyterians, he was an "Old Light," and amongst "Old Lights," he would lay claim to be an "Original Covenanter."He was descended from a long line of Scotch-Irish, and the Lusks had fled from Scotland to Ireland, escaping religious persecution; many of