Yes - I enrolled a distant Mackey cousin in the yDNA project. He is a descendant of John & Jane Mackey / Mackie / Mckay / McKee / (and who knows what else!) of Harrison County, Virginia (now WV).
Their son, John Mackey b. ca 1783 m. Mary Plummer 26 Sep 1803 in Harrison County.
Possible other children were:
* Margaret Mackie m. James Neal 26 Mar on 1796 * Catherine Mackie m. Samuel Rogders on 26 Jan 1801 * Ann Mackie m. William Randolph on 23 Dec 1803 * Mary Mackie m1 Stephen Bailey on 10 Oct 1807 and m2 John Sloan on 27 Dec 1810
Unfortunately we know of no other sons of this couple! With the new autosomal DNA testing it would be possible to find matches outside the strictly yDNA test!! So if anyone is part of one of these female lines we could still find a valuable genetic match.